How to Request a Tech Pack for Custom Shoes (2026 Guide)

TL;DR

To request a tech pack for custom shoes, gather your design references (sketches, photos, material preferences), contact a factory and clarify whether you're taking the OEM path (your own design) or ODM path (adapting factory designs), send your materials or completed spec sheet, then work through the factory's feasibility review and sampling process until you reach an approved production sample. A tech pack itself is the blueprint that turns your shoe idea into something a factory can actually produce. It includes design sketches, a bill of materials, measurements, shoe last specs, outsole and midsole specifications, size grading rules, colorway mapping, fit tolerances, testing requirements, branding details, packaging, and compliance information. This guide walks through everything a tech pack must include, how to request one from a manufacturer, what happens after you send it, and the mistakes that cost new brands time and money.

A shoe factory cannot manufacture an idea. It manufactures specifications. The tech pack is what bridges the gap between a concept in your head and a finished product in a shipping container. According to practitioners at Sourcify, the biggest misconception is thinking a tech pack is purely creative. It's production infrastructure.

Whether you're launching a private label sandal line or developing custom Mary Jane flats from scratch, understanding how to request a tech pack for custom shoes is the single most important skill you need before contacting any manufacturer.

Browse sample styles to see what factory ready designs look like before diving in.

What Is a Shoe Tech Pack?

A tech pack (short for technical packet, also called a specification sheet or spec sheet) is a detailed document that describes every technical aspect of a shoe. It covers construction, dimensions, materials, stitching methods, finishing processes, colorways, branding, and packaging. Think of it as an instruction manual that tells a factory exactly what to build, how to build it, and what the finished product should look and feel like.

In footwear, a tech pack carries more complexity than in apparel. Shoes are three dimensional, load bearing products with multiple layers, rigid components (like steel shanks and heel counters), and precise fit requirements that change across sizes. A dress tech pack might have 15 line items. A shoe tech pack for a structured wedge heel can easily have 40 or more.

The terminology varies by region. Some factories call it a "spec pack." Others say "technical specification sheet" or simply "product brief." Whatever the name, the function is the same: it eliminates guesswork so the factory produces exactly what you designed.

Product Overview: What Goes on the First Page

Before getting into granular specifications, every tech pack needs a clear product overview. This is the summary page that gives the factory instant context about what they're looking at.

The product overview typically includes the style name or number, product category (sandal, flat, wedge, boot), intended season, target consumer, price positioning, and a brief written description of the shoe's design intent. Think of it as the executive summary of your entire document.

Why does this matter? Practitioners on Reddit's r/streetwearstartup and sourcing forums frequently mention that factories handle dozens of active projects simultaneously. A clear product overview helps the development team triage your project correctly. Without one, your tech pack lands in a queue without context, and the wrong team might pick it up.

A strong product overview also prevents scope creep during development. When disagreements arise about whether a material substitution or construction change is acceptable, both sides can refer back to the stated design intent. If the overview says "minimalist, clean line, everyday flat for the US market," a factory is less likely to suggest heavy embellishments as alternatives.

Include a single hero image or rendering on this page, even a rough one. Factories are visual operations. Words describe, but a picture anchors everyone's understanding immediately.

What a Complete Footwear Tech Pack Includes

Here's a section by section breakdown of what goes into a professional shoe tech pack. Not every style needs every section at the same level of detail. A simple slide sandal has a much shorter bill of materials than a fully lined ankle boot. But the categories remain consistent.

Cover Page and Header

Start with the basics: shoe name or style number, season, version number, and date. This sounds minor, but version control is critical. When you're exchanging revisions with a factory across time zones, a clear header prevents costly mix ups.

Design Sketches (Fashion Flats)

Technical sketches are the visual foundation of any shoe tech pack. They show what the finished shoe looks like from multiple angles: side view, top view, bottom view of the sole, and back view. These are typically drawn in black and white using Adobe Illustrator, with separate colored versions that include Pantone color numbers for each colorway.

For women's styles like sandals or flats and loafers, the sketch complexity is lower than for sneakers. Fewer overlays, fewer panels, simpler stitching paths. That's an advantage for new brands, because it means your sketches don't need to be perfect. Even clean hand drawn sketches with annotations can work if the proportions and details are clear.

Bill of Materials (BOM)

The BOM is a complete list of every material and component needed to build one pair of shoes. It covers outer materials (leather, synthetic, textile), inner materials (lining, insole foam, shank), hardware (buckles, eyelets, rivets), adhesives, thread, and any decorative elements like rhinestones or studs.

A thorough BOM helps factories estimate material costs and reduce waste. It also ensures nothing gets missed during production. When a BOM says "blue leather" with no further detail, the factory picks whatever blue leather they have on hand. The result is unpredictable. Specify the Pantone reference, material grade, thickness, and finish (matte, glossy, nubuck, etc.).

Consider how this applies to something like woven espadrille flats. The BOM would specify the weave material, jute sole wrap, rubber outsole compound, insole material, and any adhesive or stitch details for the espadrille construction. Every component gets its own line.

Outsole and Midsole Specification

This is one of the most overlooked sections in tech packs from first time brands, and it's one of the most important. The outsole and midsole determine how the shoe feels underfoot, how long it lasts, and how it performs on different surfaces.

For the outsole, specify the material compound (rubber, TPR, EVA, leather, PU), shore hardness (typically measured on the Shore A scale, where 55 to 65 is common for flexible women's sandals and 70 to 85 for firmer dress shoes), tread pattern or texture, thickness at key points, and any branding embossed into the bottom.

For the midsole, note the material (EVA foam, PU, cork, stacked leather), density, and thickness. If the shoe has no visible midsole (as with many flats and sandals), this section may fold into the insole specification, but it still needs documenting.

One footwear developer shared on a YouTube walkthrough that outsole hardness discrepancies are among the top three reasons samples get rejected. A shore hardness of 60A versus 70A creates a noticeably different feel, yet many tech packs simply say "rubber outsole" and leave the factory to decide. Don't make that mistake.

For wedges and heels, the outsole spec also needs to address the heel or wedge core material, weight considerations, and how the outsole bonds to the platform or heel stack. These details prevent structural failures that only show up after wear testing.

Colorway and Material Mapping

A colorway section does more than list Pantone numbers. It maps each color to the exact component and material where it appears. This is called material mapping, and skipping it is one of the fastest ways to get a sample back that looks nothing like your vision.

Create a diagram (or annotated sketch) that labels each panel, component, and hardware piece with a number or letter. Then build a corresponding table that matches each labeled area to its specific material, color, and finish. For example:

If you plan multiple colorways, create a separate mapping table for each. "Nude" or "tan" means different things to different factories. A Pantone number paired with a material spec does not.

Practitioners on sourcing forums consistently report that factories handle color disputes much better when the original tech pack includes a visual map rather than just a list. The map turns an abstract color instruction into a concrete, verifiable reference.

Measurement Specifications

The measurement spec sheet is one of the most crucial production documents. It includes technical illustrations with callout lines pointing to specific dimensions, paired with a table listing the exact measurement for each size. For footwear, this covers outsole length, outsole width at the ball, heel height, shaft height (for boots), strap width, and platform height where applicable.

Shoe Last and Fit

The shoe last is the solid form around which a shoe gets molded. It controls shape, fit, toe box volume, and arch profile. This is the area where many first time footwear brands need the most factory support.

If you have a physical shoe that represents the shape you want, send it to the factory. Reference photos from existing products also work. The point is to give the manufacturer something concrete to work from when creating or selecting a last. Without a shoe last reference, the factory is guessing on fit, and that's how you end up with samples that look right but feel wrong on the foot.

Size Range, Sample Size, and Grading Rules

Specify which size system you're using (US, UK, EU, JP, or CM) and the full size range you intend to produce. But just as important is designating your sample size, which is the base size the factory will develop first.

For US women's footwear, the standard sample size is typically a US 7 or US 37 in EU sizing. All other sizes in the range get created by applying grading rules, which are the mathematical formulas that scale every dimension of the shoe up or down from that base size.

Why grading rules matter. Size grading isn't just making the shoe longer or shorter. Width, volume, upper pattern proportions, strap length, hardware placement, and outsole dimensions all need to scale correctly. A size 6 flat and a size 10 flat are different shapes, not just different lengths.

If you don't specify grading increments, the factory applies their standard grade, which may not match your target market's foot shape expectations. For the US market, a common length grade increment is approximately 8.5mm between full sizes, but width and girth increments vary by shoe type and last shape.

State your grading preferences clearly in the tech pack. If you want half sizes, specify those increments too. If certain dimensions should not scale linearly (for example, strap width staying constant across sizes), call that out explicitly.

For brands launching their first collection, requesting samples in two or three sizes (for example, US 6, US 8, and US 10) in addition to the base sample size helps catch grading problems early. This costs more upfront but prevents expensive corrections during bulk production. More on how sampling costs work in this guide to sample fee deductions.

Fit Tolerances

Tolerance limits define the acceptable measurement variation on a finished product. Without them, there's no standard for what counts as "within spec" and what counts as a defect. Yet this section is missing from the majority of tech packs submitted by new brands.

For footwear, common tolerances include:

• Length: plus or minus 2mm on outsole length
• Width: plus or minus 1.5mm at the ball
• Heel height: plus or minus 2mm
• Strap width: plus or minus 1mm
• Symmetry: left and right shoe variance no greater than 1.5mm on any key dimension

These numbers vary by construction type. A cemented flat sandal holds tighter tolerances than a hand stitched moccasin. The key is to state your tolerances explicitly rather than assuming the factory's default matches your expectations.

Fit tolerances also extend beyond dimensions. Include acceptable ranges for weight per shoe (important for comfort perception), shore hardness of the outsole, and adhesion strength at bond points. The more specific your tolerance table, the easier it is for QC inspectors to make pass/fail decisions during production inspections.

Testing Requirements

Testing requirements tell the factory (and any third party lab) what performance and safety standards the shoe must pass before it ships. This section is critical for brands selling into regulated markets like the US and EU, and it's the one most first time founders skip entirely.

Common footwear tests include:

• Abrasion resistance (Martindale or Taber method): measures how well the upper and lining materials hold up to rubbing. The EU standard EN 13512 and EN 17707 outline test methods for upper material abrasion.
• Flexing endurance: the shoe is flexed repeatedly (often 30,000 to 100,000 cycles depending on the standard) to check for sole separation, cracking, or material breakdown.
• Sole adhesion/bond strength: measures the force required to separate the outsole from the upper, typically tested per EN 17708 or equivalent. For cemented construction, a minimum bond strength of 3.0 N/mm is a common benchmark, though this varies.
• Slip resistance: important for markets like the EU where slip related liability is a concern. Tested on wet and dry surfaces.
• Chemical safety (REACH compliance): EU regulation restricting certain chemicals in products sold in European markets. Tests screen for restricted substances like certain azo dyes, formaldehyde, chromium VI in leather, and heavy metals. Source
• California Proposition 65: if selling into California, materials may need to be screened for lead, phthalates, and other listed substances.
• Colorfastness: tests for color transfer when the shoe is exposed to rubbing, sweat, or water.

Specify in your tech pack which tests are required, which standard or method applies, what the minimum pass criteria are, and whether the factory arranges testing or you handle it independently. Some factories have in house testing labs for basic checks, while others send samples to accredited third party labs like SGS, Bureau Veritas, or Intertek.

Including testing requirements upfront avoids a common and expensive scenario: bulk production finishes, a post production test fails, and now thousands of pairs need rework or can't clear customs. For more on the documentation side of compliance, see this checklist for reducing customs detention risk.

Construction Notes

This section describes the assembly process step by step. Cutting methods, stitching type and thread weight, lasting technique (cement, stitch down, Goodyear welt), bonding specifications, and finishing processes like burnishing or edge painting. For wedges and heels, construction notes also cover heel attachment method and any reinforcement requirements.

Branding and Labels

Mark exactly where logos, tags, and labels go. This includes insole printing, outsole embossing, tongue labels, heel logos, and any metal hardware with brand marks. Dimensions, placement measurements, and print or emboss method all belong here.

Packaging

Many founders forget that packaging is part of production. Shoe boxes, tissue paper, dust bags, carton dimensions, shipping marks, hang tags, and stickers all need specification. Packaging affects shipping cost, warehouse handling, and customer experience. For e commerce and private label brands especially, the unboxing moment is part of the product.

Compliance and Labeling

Fiber content labels, care symbols, and country of origin markings are legally required in many markets. Missing them can strand inventory at customs or trigger retailer chargebacks. If you're selling into the US or EU, your tech pack should specify the exact label content, placement, and format required for each market. This is an area where working with a factory experienced in footwear compliance for US, EU, and UK markets saves significant headaches.

Costing Sheet

The costing sheet helps you calculate the per pair production cost and the total cost for a production run. Once the factory reviews your tech pack and returns a quote, the costing sheet becomes your tool for comparing quotes across multiple factories. Generally, the more pairs you produce, the lower the cost per pair.

OEM vs. ODM: Do You Always Need to Create Your Own Tech Pack?

This is the question most guides skip entirely, and it's the one that matters most for first time brand founders.

The OEM Path: You Bring the Specs

OEM (Original Equipment Manufacturing) means you provide the complete design and the factory produces it. You own the intellectual property. In an OEM arrangement, you supply detailed tech packs covering last shape, upper pattern, sole specification, stitching details, heel height, material grade, and colorway. The factory executes your vision.

This path makes sense when you have a unique design, an experienced technical designer on your team (or budget for one), and enough volume to justify the development investment. For a deeper look at finding the right production partner, see this guide to OEM shoe manufacturers.

The ODM Path: The Factory's Tech Pack Is Your Starting Point

ODM (Original Design Manufacturing) means the factory designs the product, and you select from their existing range or co develop new styles with their design team. You brand the finished product as your own.

Here's the key insight that most articles miss: if you go the ODM route, you don't need to create a tech pack from scratch. You're requesting the factory's tech pack, or adapting one. The factory already has tested patterns, proven lasts, sourced materials, and established construction methods for each style in their catalog. Your job is to specify what you want changed: your logo placement, your colorway, your material preference, your label content.

For brands launching their first collection, starting with ODM gives you access to proven, pre developed styles with tested materials and established fit. You get speed, lower risk, and a lower MOQ. As your brand grows, you can transition specific bestselling styles into full OEM development. Explore available ODM shoe options for a closer look at how this works in practice.

Factories that specialize in women's sandals, flats, and wedges often release dozens of new styles weekly, tracking US and EU trends. You can browse the latest women's shoe styles to see how factory catalogs work as a starting point for private label customization.

How to Request a Tech Pack from a Manufacturer: Step by Step

Whether you're approaching a factory with a polished spec sheet or a napkin sketch, the process follows a predictable sequence.

Step 1: Gather What You Have

Not everyone starts with a complete tech pack. Some clients arrive with professional, production ready specifications. Others have mood boards, reference photos from Instagram, or rough pencil sketches. Both are valid starting points, but you need to organize whatever you have before reaching out.

Collect the following:

• Any sketches or renderings of your design
• Reference photos of existing shoes that represent the look, fit, or construction you want
• Material preferences (even general ones like "matte leather" or "natural jute sole")
• Target price range per pair
• Intended size range and market (US, EU, etc.)
• Volume estimate (how many pairs per style)
• Brand assets (logo files, Pantone colors, label content)
• Testing or compliance requirements for your target market

The more prepared you are, the faster the factory can evaluate your project and provide an accurate quote.

Step 2: Contact the Factory and Clarify Your Path

When you reach out, state upfront whether you want OEM (bringing your own design) or ODM (working from factory styles). If you're unsure, say that too. A factory with an in house development team can review your materials and recommend the right path.

Start a conversation by sharing your reference materials and project scope.

Step 3: Send Your Tech Pack or Reference Materials

If you have a completed tech pack, send it as a clearly named file. Practitioners on sourcing forums consistently warn against file names like "final-final-techpack-03.pdf." Instead, use a naming convention like: BrandName_StyleName_V2_2025-07-10.pdf. When you send updates, create a new version number and highlight changes in the email body.

If you don't have a tech pack, send whatever you do have. Reference photos, sketches, competitor product links, and written descriptions of what you want. The factory's development team will use these to create or adapt a production ready spec sheet.

Always confirm the manufacturer received your files. Ask them to reply with a brief summary of what they understood: the style, materials, colorway, target MOQ, and timeline. This "confirmation loop" catches misunderstandings before they become expensive mistakes.

Step 4: Factory Review and Feasibility Check

After receiving your tech pack or reference materials, the factory evaluates whether the design is producible at your target price and quality level. Some designs look great as renderings but cause problems in pattern making, lasting, or bonding.

The factory checks whether proposed materials are available, stable, and suitable for the construction method and target market. If a material is too costly, hard to source, or unsuitable for production, they'll recommend alternatives. This is normal. It's a collaborative step, not a rejection.

For simpler styles like cork birken style sandals, the feasibility review tends to be fast because the construction is well established and the material palette is narrow. For complex designs with unusual hardware or layered construction, expect more back and forth.

Step 5: Sampling Begins

Once both sides agree on the specifications, sample development starts. During this process, the tech pack may be revised multiple times as you evaluate physical samples and request adjustments.

Keep every version of the tech pack on file and compare them as changes accumulate. The goal is to reach a final approved sample that matches your specifications closely enough to move into bulk production. For a detailed look at how to handle this approval step, see this guide on pre production sample approval.

A mandatory physical signed sample approval before mass production is standard practice at reputable factories. This final checkpoint protects both you and the manufacturer from sample to bulk inconsistencies.

What Happens After You Send a Tech Pack

Most guides stop at "create the tech pack and send it." But the post submission workflow is where the real work happens.

Quote and timeline. The factory uses your tech pack to calculate material costs, labor, and overhead. They return a per pair price, a minimum order quantity, and a production timeline. For standard women's styles, expect lead times in the range of 35 to 50 days from order confirmation to shipment. Learn more about typical MOQs for private label shoes.

Sample rounds. The first sample (called a "proto" or development sample) rarely comes back perfect. One or two rounds of revision are normal. According to one UK manufacturer, clients who came with tech packs were 82% more likely to hit production in just two rounds of sampling. That's a significant time and cost advantage.

Pre production confirmation. After you approve the final sample, the factory prepares for bulk production. This includes ordering materials, setting up production lines, and scheduling QC checkpoints. Factories with structured quality processes typically conduct inspections at three stages: raw material intake, mid production, and pre shipment.

Production and shipping. Bulk production runs, QC reports are shared (often with photos and video), and the order ships according to the agreed Incoterms and payment schedule.

Common Mistakes When Requesting or Sending a Shoe Tech Pack

According to Sourcify, 9 out of 10 fashion designers and entrepreneurs send incomplete tech packs when requesting a manufacturing quote. Here are the most frequent errors and how to avoid them.

Vague material specifications. Writing "blue leather" instead of "Pantone 19-4052 TCX, full grain bovine leather, 1.0mm thickness, matte finish" forces the factory to guess. They'll use whatever they have, and you'll get an unexpected result.

Missing tolerance limits. Without stated tolerances, there's no standard for what counts as "within spec" and what counts as a defect. For footwear, a common tolerance is plus or minus 2mm on key dimensions, but this varies by construction type. Spell it out.

No version control. Sending multiple revisions without clear version numbers leads to factories producing from outdated specs. Always increment the version number and call out what changed.

Omitting packaging and labeling. This is especially costly for US and EU markets where compliance labeling is legally required. Forgetting to specify shoe box dimensions, care labels, or country of origin markings creates problems that surface at customs, not at the factory.

No shoe last reference. If you don't provide a last reference (physical sample, photos, or last number from a previous production), the factory has to invent the fit. The result might look right but feel completely wrong.

Skipping the costing sheet. Without a costing sheet, you can't compare quotes across factories in any meaningful way. You're comparing apples to estimates.

No outsole or midsole specs. Leaving out shore hardness, outsole thickness, and tread pattern means the factory defaults to whatever is cheapest or most convenient. The shoe may feel completely different from what you imagined.

Ignoring testing requirements. Not specifying which tests the product needs to pass (abrasion, flexing, REACH, Prop 65) creates a ticking clock. If a test fails after bulk production, the cost of rework or disposal falls on you.

How Much Does a Shoe Tech Pack Cost?

If you don't have an in house technical designer, you'll need to hire someone to create your tech pack. Prices range widely.

Freelance designer pricing varies with complexity. A flat sandal with 8 components is far cheaper to spec than a structured boot with 30 or more.

Many OEM/ODM factories fold tech pack development into the sample fee. If the factory charges $100 to $300 for custom sample development and deducts that fee from your bulk order, you're effectively getting production ready specifications as part of the sampling process. That's competitive, especially for brands not ready to invest $500 or more in standalone tech pack creation.

Tools for Creating Shoe Tech Packs

You don't need expensive software to create a functional tech pack. Manufacturers care about clarity, not visual polish.

Adobe Illustrator is the industry standard for technical sketches. If you're creating fashion flats, this is the go to tool.

Microsoft Excel or Google Sheets works well for BOMs, measurement tables, and costing sheets. Many independent brands build their entire tech pack in a spreadsheet, and factories accept them without issue.

Techpacker is a cloud based platform designed specifically for tech packs, with built in version tracking and collaboration features.

Repsketch offers footwear specific vector templates that speed up the sketch process for common shoe types.

Etsy templates ($5 to $25) provide budget friendly starting frameworks for beginners. They won't be customized to your exact style, but they show you the right structure and sections to fill in.

Key Takeaway

A tech pack is the language factories speak. The better yours is, the faster and cheaper your custom shoe project will be. If you're not ready for a full tech pack, that's fine. Work with a factory that offers both OEM and ODM pathways, has an in house development team, and can translate your rough ideas into production ready specifications.

The most important thing is to start the conversation with whatever you have. A sketch, a reference photo, a competitor's shoe you want to improve on. A good factory will tell you exactly what else they need.

Get in touch to start your project, whether you have a full tech pack or just a first idea.

Frequently Asked Questions

What is a tech pack for custom shoes?

A tech pack (also called a specification sheet or spec pack) is a detailed document that describes every technical aspect of a shoe design. It includes a product overview, sketches, a bill of materials, measurements, outsole and midsole specifications, colorway and material mapping, grading rules, fit tolerances, testing requirements, construction notes, branding placement, packaging specs, and compliance details. Factories use it as the blueprint for sample development and mass production.

Do I need a tech pack to order custom shoes from a factory?

Not always. If you follow the ODM path, you select from a factory's existing designs and customize branding, colors, or materials. The factory already has the tech pack. If you're developing an original design (OEM), you either need to provide a tech pack or work with the factory's development team to create one from your sketches and reference materials.

How much does it cost to have a shoe tech pack created?

Costs range from $20 to $65 on freelance platforms like Fiverr, $50 to $2,000 for professional freelance designers, and $80 to $350 or more through specialized agencies. Some factories include tech pack development in their sampling fees, making it effectively free if you proceed to bulk production.

What are the most common tech pack mistakes?

The biggest problems are vague material descriptions (saying "blue leather" without a Pantone reference or thickness), missing tolerance limits, poor version control on file revisions, omitting compliance labeling for US or EU markets, failing to provide a shoe last reference for fit, leaving out outsole specifications, and not including testing requirements.

What is the difference between OEM and ODM for custom shoes?

OEM means you provide your own complete design and the factory manufactures it. You own the intellectual property. ODM means the factory designs the shoe, and you select or modify existing styles, branding them as your own. ODM is faster and lower risk for brands launching their first collection. Learn more about choosing the right ODM manufacturer.

How long does the sampling process take after submitting a tech pack?

Initial samples typically ship within 7 to 14 days depending on complexity. Most projects require one or two rounds of sample revisions before approval. After final sample sign off, bulk production generally takes 35 to 50 days.

What file format should I use when sending a tech pack to a factory?

PDF is the safest format for design sketches and layout pages because it preserves formatting across devices. Send BOMs and measurement tables as Excel or Google Sheets files so the factory can work with the data directly. Always name files with your brand name, style name, version number, and date.

Can I request a tech pack for sandals or flats, or are tech packs only for sneakers?

Tech packs apply to every shoe category. Women's sandals, flats, and wedges actually have simpler tech packs than sneakers because they have fewer construction layers and a shorter BOM. If anything, starting with a simpler category makes the process easier to learn.

What testing should I require in my shoe tech pack?

At minimum, consider abrasion resistance, flexing endurance, sole adhesion strength, and colorfastness. For the EU market, REACH chemical compliance testing is mandatory. For California, Proposition 65 screening may be needed. Specify which tests, which standards, and what pass criteria apply so there are no surprises after production.

What are grading rules and why do they matter?

Grading rules are the mathematical formulas that scale a shoe's dimensions from the base sample size to every other size in your range. They control not just length, but width, volume, strap length, and component placement. Without specified grading rules, the factory uses their default grade, which may not match your target market's expectations for fit across sizes.