How to Create a Clothing Tech Pack for Manufacturing (Step-by-Step Guide)
Author: Bo Metz. Last updated: March 2026
A clothing tech pack is the technical document manufacturers use to produce a garment accurately. It defines the materials, measurements, construction details, trims, and packaging requirements used during apparel production.
Before a garment can move into sampling or bulk manufacturing, factories rely on tech packs to understand exactly how a product should be built. Designers may begin with sketches or creative concepts, but manufacturers require structured specifications that translate those ideas into a production-ready garment.
A well-prepared tech pack allows manufacturers to estimate costs, develop prototype samples, and maintain quality control during production. Without clear documentation, factories must interpret incomplete design information, which often leads to sampling errors, additional revisions, and delays.
In this guide, we explain how to create a clothing tech pack for manufacturing, including the essential sections every tech pack should contain and how they are used during apparel development.
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A clothing tech pack documents the technical specifications required to manufacture a garment.
A factory-ready tech pack typically includes:
• Technical flat sketches
• Bill of materials (BOM)
• Measurement specifications
• Construction instructions
• Colorways and labeling
• Packaging instructions
• Fit referencesThese sections allow manufacturers to estimate production costs, develop samples, and maintain quality control during manufacturing.
What Information Does a Clothing Tech Pack Contain?
A clothing tech pack documents the technical specifications required to manufacture a garment. While formats vary between brands and factories, most production-ready tech packs contain the following components:
Technical flat sketches showing the garment structure from multiple views
Bill of materials (BOM) listing fabrics, trims, and components
Measurement specifications including Points of Measure (POM) and tolerances
Construction instructions describing seams, stitching, and assembly methods
Colorways and labeling details including Pantone references and brand labels
Packaging instructions outlining folding, tagging, and shipment preparation
Fit references describing intended garment silhouette and sizing
These sections provide manufacturers with the information required to develop samples, estimate production costs, and maintain quality standards during production.
If you're preparing garments for manufacturing, the easiest way to structure these sections is to start with a production-ready template.
Our free clothing tech pack template includes the exact components listed above, including technical flat pages, BOM tables, spec sheets, and construction notes used during apparel development.
What Is a Clothing Tech Pack?
A clothing tech pack (technical package) is the document used by apparel manufacturers to translate a design concept into a manufacturable product.
It includes all technical specifications required to produce a garment, such as:
garment sketches and technical drawings
materials and trims
measurement specifications
construction methods
finishing instructions
Think of a tech pack as the production blueprint for a garment. When properly prepared, the factory should be able to develop samples and begin production without needing to interpret missing information.
Tech packs are used throughout the entire product development process, including:
pattern development
sample creation
production costing
quality control inspections
For brands producing garments at scale, the tech pack becomes the central reference document used by both internal teams and external manufacturers.
Why Clothing Manufacturers Require Tech Packs
Most clothing manufacturers require a tech pack before they begin development or provide production quotes.
The document allows factories to evaluate a design’s feasibility and determine the resources required to manufacture it.
Cost Estimation
Manufacturers use tech packs to estimate production costs. Material specifications, trims, and construction details determine labor requirements and fabric consumption.
Without these inputs, accurate pricing is impossible.
Pattern Development
Patternmakers rely on measurement specifications and garment construction notes to develop patterns used for sampling and production.
Incomplete specifications force patternmakers to make assumptions, which often leads to incorrect prototypes.
Sampling
Factories use the tech pack to create development samples and pre-production samples. Each sampling stage relies on the specifications provided in the tech pack.
Quality Control
During bulk production, quality control teams reference the tech pack to verify measurements, construction details, and finishing requirements.
For this reason, many manufacturers view the quality of a tech pack as an indicator of whether a brand is prepared for production.
What Factories Actually Do With Your Tech Pack
Once a tech pack is submitted to a manufacturer, it becomes the operational document used across multiple stages of development.
Development Review
Production managers review the tech pack to determine whether the garment can be manufactured with available equipment and materials.
Pattern Creation
Patternmakers use the measurements and construction instructions to create the garment pattern used during sampling.
Prototype Sampling
Factories produce a prototype sample to test fit, construction, and materials.
Costing and Quotation
Production teams calculate the total cost of manufacturing based on materials, labor requirements, and order quantity.
Production Approval
After sampling revisions are completed, the final tech pack becomes the specification used during bulk manufacturing.
Because of this workflow, incomplete or inaccurate tech packs often result in additional development rounds and increased costs.
The 7 Essential Sections of a Tech Pack
A professional clothing tech pack typically includes several structured sections that communicate all technical requirements for production. Together, these sections create a complete production specification that allows manufacturers to produce garments accurately.
Technical Flat Sketches
Technical flats are two-dimensional drawings that show the garment from the front and back.
They illustrate structural elements such as:
seams
pockets
collars
closures
Technical flats allow manufacturers to understand the garment’s structure quickly and identify important construction details.
Bill of Materials (BOM)
The bill of materials lists every component required to produce the garment.
This typically includes:
fabric type and weight
trims (zippers, buttons, elastics)
labels and packaging components
Providing detailed material specifications helps factories source the correct materials and estimate production costs accurately.
Measurement Specifications
Measurement specifications define the dimensions of the garment.
Most tech packs include:
size charts
Points of Measure (POM) diagrams
tolerance ranges
These specifications ensure that garments fit consistently across production runs.
Construction Details
Construction notes explain how the garment should be assembled.
They may include instructions such as:
seam types
stitching techniques
reinforcement areas
Clear construction instructions help manufacturers maintain durability and consistency during production.
Colorways and Labeling
This section documents color options and branding elements.
It typically includes:
Pantone color references
fabric color variations
label placement instructions
care label text
Providing clear color references ensures that garments match brand standards.
Packaging Instructions
Packaging instructions describe how finished garments should be prepared for shipment.
This may include:
folding methods
packaging materials
units per carton
Clear packaging instructions help prevent damage during transportation and ensure products arrive retail-ready.
Fit References
Fit references help manufacturers understand the intended silhouette of the garment.
These may include:
photographs of fit samples
model measurements
notes on intended ease or drape
Fit references are particularly helpful for communicating style expectations beyond raw measurements.
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If you're preparing a garment for manufacturing, you can start with our free clothing tech pack template used by emerging brands and established labels.
The template includes:
• technical flat sketch pages
• bill of materials tables
• measurement specification sheets
• construction instruction sections
• labeling and packaging sections
How Detailed Should a Tech Pack Be?
The level of detail required in a tech pack depends on the complexity of the garment and the capabilities of the manufacturer.
Basic garments such as t-shirts may require fewer specifications, while structured garments like jackets or outerwear often require additional documentation.
More complex tech packs may include:
seam construction diagrams
artwork placement specifications
graded measurement charts
packaging and labeling diagrams
Providing more detail reduces the likelihood of production errors and helps manufacturers estimate timelines and costs more accurately.
Tech Pack vs Spec Sheet
Designers often confuse tech packs with spec sheets.
A spec sheet typically focuses only on measurements and sizing information.
A tech pack includes all specifications required to manufacture the garment, including:
materials
construction methods
labeling instructions
packaging requirements
Spec sheets are usually one section within a complete tech pack.
Common Tech Pack Mistakes That Delay Production
Even experienced designers sometimes create tech packs that lead to production delays.
Lack of Detail
Missing specifications force manufacturers to make assumptions during development.
Inconsistent Terminology
Using unclear construction terminology can create confusion across production teams.
Missing Measurement Tolerances
Without tolerances, factories cannot enforce consistent sizing during quality control.
Outdated Tech Packs
Failing to update tech packs after sampling revisions can result in incorrect production specifications.
Avoiding common tech pack mistakes significantly reduces development time and production risk.
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At BOMME Studio, tech packs are used during both development sampling and bulk production to ensure garment specifications remain consistent across manufacturing runs.
Manufacturers use tech packs to:
• estimate production costs
• develop prototype samples
• review materials and trims
• maintain quality control during productionWithout a detailed tech pack, factories often need multiple sampling revisions before a garment is production-ready.
Example Layout of a Factory-Ready Tech Pack
A typical factory-ready tech pack contains the following pages:
Cover Page (style name, version, date)
Technical Flat Sketches
Bill of Materials
Measurement Specifications
Construction Instructions
Colorways and Label Placement
Packaging Instructions
Fit References
Many brands also include revision logs that track design changes during development.
If you are developing a clothing product, you generally have two options.
Option 1 — Create Your Own Tech Pack
You can use our free clothing tech pack template to document your design specifications and prepare your product for manufacturing.
Download Free Apparel Tech Pack Template
Option 2 — Have a Factory-Ready Tech Pack Created
If you want to move faster, our technical design team can convert your concept into a factory-ready tech pack used by clothing manufacturers during sampling and production.
Our tech pack service includes:
technical flat sketches
measurement specification sheets
bill of materials
construction instructions
labeling and packaging details
Request a Factory-Ready Tech Pack → $450
