Complete Tech Pack Guide & Checklist for Fashion, Activewear, Gym Wear & Sportswear Brands

If you're planning to manufacture clothing under your own brand, one document can dramatically improve communication between you and your apparel manufacturer:

The Tech Pack.

A tech pack—short for technical package—communicates exactly how you want a garment to be developed and manufactured.

It can include:

Technical Sketches | Measurements | Fabric | GSM | Colors | Stitching | Trims | Printing | Labels | Packaging | Construction Details

Whether you're developing a T-shirt, polo, hoodie, track pant, jogger, shorts, sports bra, leggings, tracksuit or sports jersey, a well-prepared tech pack helps reduce assumptions during sampling and production.

This guide explains how to create a clothing tech pack, what information it should contain, common mistakes to avoid and how to prepare specifications before contacting a clothing manufacturer in India.

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What Is a Tech Pack in Clothing Manufacturing?

A clothing tech pack is a technical document containing the specifications a manufacturer needs to understand and develop a garment.

Think of it as a blueprint for your clothing product.

Instead of telling a manufacturer:

“I want a premium oversized black T-shirt.”

you provide measurable specifications such as:

Product: Men's Oversized T-Shirt
Fabric: 100% Cotton Single Jersey
GSM: 220 GSM
Fit: Oversized
Neck: Round Neck
Shoulder: Dropped Shoulder
Sleeves: Half Sleeve
Color: Black
Branding: Front + Back Print
Label: Custom Private Label
Packaging: Individual Branded Packaging

Then you add measurements, artwork placement and construction details.

That converts an idea into a manufacturable product specification.

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Why Is a Tech Pack Important?

Without detailed specifications, the manufacturer must make assumptions.

For example:

You say:

“Make an oversized T-shirt.”

But what exactly does oversized mean?

How wide should the chest be?

How much shoulder drop?

What should the sleeve opening be?

How long should the body be?

How wide should the neck rib be?

What GSM should be used?

What print dimensions are required?

Your interpretation and the manufacturer's interpretation may be different.

A tech pack reduces this ambiguity.

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Benefits of a Clothing Tech Pack

A good tech pack can help with:

Clear Communication

Both brand and manufacturer work from documented specifications.

More Accurate Sampling

Measurements and construction details are clearer.

Better Quotations

The manufacturer understands the product before estimating cost.

Fewer Sampling Revisions

Clear specifications can reduce unnecessary back-and-forth.

Quality Control

Bulk garments can be checked against approved specifications.

Repeat Production

Your specifications remain documented for future orders.

Working With Multiple Suppliers

You can communicate the same requirements more consistently.

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Do You Need a Tech Pack to Manufacture Clothing?

Not every order requires a highly complex professional tech pack.

For basic:

Corporate T-shirts
Promotional T-shirts
Standard polo shirts
White-label apparel

a supplier may already have standard specifications.

But tech packs become increasingly useful for:

Private label clothing
Custom activewear
Gym wear
Sportswear
Oversized T-shirts
Leggings
Sports bras
Custom joggers
Custom jackets
Complex garments

The more customized the product, the more valuable the tech pack becomes.

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What Should a Clothing Tech Pack Include?

A detailed tech pack can contain:

1. Cover page
2. Product overview
3. Technical sketches
4. Fabric specification
5. Colorways
6. Bill of Materials
7. Measurement chart
8. Point of Measurement guide
9. Construction details
10. Stitching details
11. Trims
12. Artwork
13. Logo placement
14. Labels
15. Hang tags
16. Packaging
17. Size grading
18. Sample comments
19. Revision history
20. Final approval information

Let's examine each section.

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1. Tech Pack Cover Page

Start with basic product identification.

Include:

Brand Name: Your Brand
Style Name: Men's Performance T-Shirt
Style Number: MPT-001
Season: SS26
Category: Activewear
Gender: Men
Fit: Athletic Fit
Version: V1
Date: Relevant development date

A unique style number is particularly important when you're developing multiple garments.

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2. Product Description

Provide a short technical description.

For example:

Men's short-sleeve performance training T-shirt with round neck, athletic fit, lightweight polyester-elastane fabric and heat-transfer chest branding.

This immediately tells the manufacturer what type of garment is being developed.

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3. Technical Flat Sketch

A technical flat is a simple drawing showing the garment laid flat.

Usually include:

Front View

and

Back View

For more complex products, include:

Side view
Inside view
Detail view

Technical drawings should show construction—not just fashion styling.

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What Should a Technical Sketch Show?

For a T-shirt:

Neck shape
Sleeves
Shoulder seam
Side seams
Bottom hem
Logo placement

For joggers:

Waistband
Drawcord
Pockets
Side seams
Cuffs
Zippers

For a sports bra:

Straps
Neckline
Underband
Back construction
Panel seams

The drawing helps the manufacturer understand the design visually.

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Technical Flat vs Fashion Illustration

A fashion illustration communicates:

Style and aesthetic.

A technical flat communicates:

Construction.

Your manufacturer usually needs the second.

A beautiful AI-generated fashion image can be useful as inspiration, but it does not replace technical garment specifications.

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4. Fabric Specification

This is one of the most important sections.

Do not write only:

“Cotton”

or

“Lycra.”

Specify as much as possible.

For example:

Composition: 100% Cotton
Construction: Single Jersey
GSM: 220 GSM
Color: Black
Finish: As approved
Stretch: As applicable
Fabric Reference: Approved swatch/reference

For performance apparel:

Composition: 92% Polyester / 8% Elastane
GSM: 180 GSM
Stretch: 4-way stretch where specified
Finish: Performance finish where applicable

Actual specifications should be confirmed with your manufacturer.

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5. What Is GSM in a Tech Pack?

GSM means:

Grams per Square Metre.

It describes fabric weight.

For example:

150 GSM performance polyester

and

240 GSM cotton jersey

are very different materials.

But remember:

GSM is a specification—not a quality score.

A higher GSM does not automatically mean better fabric.

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6. Fabric Swatch

Where possible, attach or reference an approved physical fabric swatch.

Why?

Because words such as:

Soft
Premium
Smooth
Heavy
Stretchy

are subjective.

A physical approved reference reduces ambiguity.

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7. Color Specification

Avoid describing colors only as:

Blue
Green
Red

Instead provide more specific color references where possible.

Your tech pack can include:

Color name
Color code/reference
Pantone reference where appropriate
Approved fabric swatch

For example:

Colorway 01: Black
Colorway 02: Navy
Colorway 03: Olive

For custom colors, physical approval is important because digital screens do not represent fabric color consistently.

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8. Colorways

A colorway shows how a garment appears in each approved color combination.

Suppose a sports jersey has:

Body: Navy
Sleeve: White
Side panel: Red

Another colorway might have:

Body: Black
Sleeve: Grey
Side panel: Red

Document each clearly.

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9. Bill of Materials — BOM

BOM means:

Bill of Materials.

It lists the components required to manufacture the garment.

For example, a jogger BOM could include:

A BOM helps prevent forgotten components.

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10. Measurement Specification Sheet

The measurement chart is one of the most important parts of your tech pack.

For a T-shirt, measurements may include:

Chest
Body length
Shoulder
Sleeve length
Sleeve opening
Bottom opening
Neck width
Front neck drop
Back neck drop

Each measurement should correspond to a defined measurement method.

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Example T-Shirt Measurement Chart

Do not copy random measurements from another brand.

Develop measurements according to your target customer and intended fit.

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11. Point of Measurement — POM

POM means:

Point of Measurement.

It explains exactly how each measurement should be taken.

For example:

Chest

Measure horizontally from underarm to underarm with garment laid flat.

Body Length

Measure from the specified shoulder point to bottom hem.

Sleeve Length

Measure according to the defined shoulder/sleeve construction.

Without POM instructions, two people can measure the same garment differently.

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Why POM Matters

Imagine your specification says:

Chest: 54 cm

But you don't explain whether that means:

Half chest

or

Full circumference.

That could create a major manufacturing error.

Clear POM instructions reduce such problems.

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12. Measurement Tolerances

Bulk production can involve small manufacturing variation.

Therefore, tech packs may specify acceptable tolerances.

For example:

Chest: ± specified tolerance

Length: ± specified tolerance

The exact tolerance depends on:

Garment
Fabric
Measurement point
Production requirement

Discuss suitable tolerances with your manufacturer and quality team.

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13. Size Grading

Suppose your approved sample is size M.

You still need:

S
L
XL
XXL

Grading defines how measurements change between sizes.

For example, chest may increase by a defined amount between each size.

But not every measurement necessarily changes by the same amount.

Good grading contributes to consistent fit across the size range.

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14. Construction Details

This section explains how the garment should be assembled.

For a T-shirt, you may specify:

Neck construction
Shoulder seam
Side seam
Sleeve hem
Bottom hem
Neck tape
Stitch type

For shorts:

Waistband construction
Pocket construction
Side seams
Hem
Drawcord
Lining

For leggings:

Waistband
Gusset
Panel seams
Hem
Pocket

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15. Stitching Specification

Don't simply write:

“Good stitching.”

That isn't a technical specification.

Depending on the garment, specify relevant:

Stitch type
Seam type
Needle requirement
Thread
SPI where applicable
Cover stitch
Overlock
Flatlock

Your manufacturer can help determine suitable production specifications if you're not technically experienced.

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16. Seam Allowance

Seam allowance can also be documented where important.

This is particularly useful when:

Developing patterns
Working with multiple manufacturers
Creating technical sportswear
Managing complex panel construction

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17. Trims

Trims include garment components other than main fabric.

Examples:

Zippers
Buttons
Elastic
Drawcords
Eyelets
Cord stoppers
Velcro
Snaps
Reflective tape
Padding

Specify:

Type
Size
Material
Color
Supplier/reference where relevant

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Tech Pack Example for Joggers

A jogger tech pack may specify:

Main Fabric: 260 GSM cotton terry
Waistband: Elasticated
Drawcord: Round cotton drawcord
Pockets: Two side pockets
Back Pocket: One
Cuff: Ribbed
Logo: Embroidery
Main Label: Woven
Care Label: Printed
Packaging: Individual

Then add measurements and construction details.

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Tech Pack Example for Performance Track Pants

A performance track pant might specify:

Fabric: Polyester-elastane
GSM: Selected performance weight
Fit: Tapered
Waist: Elastic + drawcord
Pockets: Zippered side pockets
Hem: Open or cuffed
Logo: Heat transfer
Brand Label: Custom
Packaging: Individual

Technical drawings should show pocket and zipper positions.

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Tech Pack Example for Leggings

Leggings require particularly detailed specifications.

Include:

Fabric composition
GSM
Stretch
Recovery requirements
Waistband height
Front rise
Back rise
Inseam
Outseam
Leg opening
Gusset
Pocket details
Seam construction
Logo placement

Fit testing is critical.

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Tech Pack Example for Sports Bra

Include:

Main fabric
Lining
Padding
Elastic
Straps
Neckline
Armhole
Underband
Back design
Seam construction
Logo
Measurements

Sports-bra performance depends on both fabric and construction.

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Tech Pack Example for Sports Jersey

Include:

Fabric
GSM
Neck design
Sleeve
Panel construction
Graphics
Player name
Player number
Team logo
Sponsor logos
Print method
Shorts specifications where applicable

For sublimated jerseys, artwork files become especially important.

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18. Artwork Specification

If the garment includes printing, specify:

Artwork
Dimensions
Placement
Colors
Printing method where determined

Do not write:

“Put logo on chest.”

Instead document something like:

Logo Width: X cm
Position: X cm below shoulder / according to approved placement diagram

The exact measurement system should be consistent.

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19. Logo Placement

Your tech pack should visually show logo placement.

Common positions include:

Left chest
Center chest
Back
Sleeve
Thigh
Leg
Waistband

For every logo provide:

Size
Position
Artwork reference
Application method

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20. Printing Methods

Depending on the garment, suitable options can include:

Screen printing
DTF printing
Heat transfer
Sublimation
Embroidery

The method should be compatible with:

Fabric
Artwork
Quantity
Desired finish

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21. Print Color

Do not assume the printer knows the exact shade.

Specify applicable color references.

For brand logos, consistency is particularly important.

Your brand red should not be bright red on one garment and burgundy on another unless intentional.

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22. Embroidery Specification

For embroidery, provide:

Artwork
Dimensions
Position
Thread colors
Backing requirements where relevant

The embroidery supplier may also create a digitized embroidery file.

Approve a strike-off/sample where appropriate.

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23. Main Brand Label

Specify:

Label type
Dimensions
Material
Color
Logo
Position

Possible label types include:

Woven label
Printed label
Heat-transfer label

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24. Size Label

Specify sizes such as:

XS
S
M
L
XL
XXL

and where the size label should appear.

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25. Wash-Care Label

Your wash-care label may need to include applicable:

Fiber composition
Care instructions
Size
Brand/manufacturer/importer details
Country-of-origin or other information

Requirements depend on the destination market and applicable regulations.

Verify legal labeling requirements before production.

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26. Hang Tag

Specify:

Dimensions
Paper/material
Print
Logo
Finish
String
Placement

Hang tags may include:

Brand name
Product information
MRP
Barcode
QR code
Website

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27. Packaging Specification

Your tech pack can define how each garment should be packed.

Example:

Fold garment according to approved method.

↓

Attach hang tag.

↓

Place in individual bag.

↓

Apply size sticker.

↓

Pack according to carton ratio.

For eCommerce brands, packaging consistency can simplify fulfillment.

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28. Folding Instructions

This may seem minor, but consistent folding affects:

Presentation
Packaging size
Warehouse handling

If important to your brand, include a folding diagram.

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29. Carton Packing

For bulk production, specify:

Pieces per carton
Size assortment
Color assortment
Carton dimensions if required
Carton markings
SKU labels

This becomes particularly useful for:

Wholesale
Marketplaces
Retail distribution
Exports

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30. Barcode & SKU Information

Every variation should have a unique identifier where required.

Example:

Product: Men's Oversized T-Shirt
Color: Black
Size: M
SKU: MOT-BLK-M

Another:

SKU: MOT-BLK-L

Consistent SKU logic simplifies inventory management.

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31. Sample Comments Sheet

Your first sample is rarely perfect.

Document comments systematically.

Instead of:

“Make it better.”

write:

Chest: Reduce by 1 cm
Body Length: Increase by 2 cm
Sleeve: Increase by 1 cm
Logo: Move 2 cm upward
Neck Rib: Increase width

Specific comments are easier to execute.

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32. Tech Pack Revision History

Maintain versions.

For example:

V1 — Initial specifications
V2 — Fit correction
V3 — Fabric changed
V4 — Final approval

Always make it clear which version is current.

Otherwise, a factory could accidentally produce from an outdated specification.

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33. Proto Sample

The first development sample is often referred to as a prototype/proto sample.

Its purpose is to evaluate:

Overall design
Construction
Measurements
Initial fit

It may not always use final production materials depending on the development process.

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34. Fit Sample

The fit sample focuses primarily on:

Measurements
Proportions
Comfort
Movement

For activewear, test the garment during intended activities.

For example:

Leggings → squats and movement

Track pants → running and stretching

Sports bra → appropriate movement testing

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35. Size Set

A size set allows you to evaluate multiple sizes before bulk production.

This can help identify grading problems.

A Medium may fit perfectly while XXL has incorrect proportions.

Do not assume grading is correct without checking where appropriate.

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36. Pre-Production Sample

Before bulk manufacturing, brands may approve a pre-production sample based on final specifications and production materials/processes as applicable.

This can act as an important reference for bulk production.

Your exact sample process should be agreed with the manufacturer.

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37. Sealed / Approved Sample

Once approved, clearly document which sample and specification version is the production reference.

This becomes important during quality control.

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How to Create a Tech Pack Step by Step

Step 1 — Define Product

Example:

Men's 220 GSM Oversized T-Shirt.

Step 2 — Create Technical Drawing

Front + back.

Step 3 — Select Fabric

Composition + construction + GSM.

Step 4 — Define Fit

Oversized, regular, athletic, etc.

Step 5 — Create Measurement Chart

Base size + grading.

Step 6 — Add Construction

Neck, seams, hems, pockets, etc.

Step 7 — Add Artwork

Logo + prints.

Step 8 — Add Labels

Brand + size + care.

Step 9 — Add Packaging

Bag + tags + folding.

Step 10 — Develop Sample

Manufacturer creates sample.

Step 11 — Review

Measure and wear test.

Step 12 — Update Tech Pack

Record every change.

Step 13 — Approve Final Sample

Lock specifications.

Step 14 — Bulk Production

Manufacture according to approved specification.

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What File Format Should a Tech Pack Use?

Common formats include:

PDF
Excel / spreadsheet
Illustrator files
Specialized fashion-development software

For many startups, a practical combination is:

PDF + Spreadsheet + Vector Artwork

The most important factor is not fancy software.

It is clear, measurable information.

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Can You Make a Tech Pack in Excel?

Yes.

A spreadsheet can work very well for:

Measurement charts
BOM
Colorways
Size grading
Revision tracking

Technical drawings and visual construction pages can be created separately and combined into a PDF.

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Can You Create a Tech Pack Without Adobe Illustrator?

Yes.

Professional fashion teams frequently use vector design software, but startups can use other tools to prepare technical information.

The key is ensuring:

Drawings are clear
Measurements are accurate
Specifications are readable

Do not delay product development simply because you don't own a specific software package.

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Can AI Create a Clothing Tech Pack?

AI can help with:

Organizing specifications
Creating checklists
Drafting descriptions
Suggesting missing specification fields
Structuring measurement tables

But AI should not invent critical production measurements or technical construction details without validation.

Physical sampling remains essential.

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Can You Manufacture From a Reference Garment?

A physical reference garment can be extremely useful.

You can tell the manufacturer:

“I like this fit but want these changes.”

Then document:

Chest
Length
Sleeve
Fabric
Fit modifications

However, avoid simply copying another brand's protected designs or branding.

Use reference garments to understand fit and construction while developing your own product.

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Can You Manufacture From a Photo?

A photo can communicate aesthetic direction.

But a photo does not show:

Exact measurements
Fabric composition
GSM
Inside construction
Seam allowance
Stretch
Trims
Label details

Therefore:

Photo = Reference

Tech Pack = Specification

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Tech Pack for Private Label Clothing

Private label brands should particularly document:

Fabric
Fit
Colors
Measurements
Branding
Labels
Packaging

This helps establish product consistency over repeat orders.

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Tech Pack for Activewear

Activewear tech packs may need additional information around:

Stretch
Recovery
Fabric weight
Panels
Ventilation
Waistbands
Pockets
Compression
Seam placement

Performance should be tested on actual samples.

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Tech Pack for Gym Wear

For gym apparel, consider:

Range of motion
Sweat areas
Fabric stretch
Garment length during movement
Pocket security
Waistband stability

A garment that looks perfect while standing still may behave differently during exercise.

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Tech Pack for Sportswear

Sportswear may require:

Team colors
Performance fabric
Numbers
Names
Sponsor logos
Print placement
Ventilation
Sport-specific fit

If you're developing teamwear, document personalization rules clearly.

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Tech Pack for Oversized T-Shirts

Important measurements include:

Chest
Body length
Shoulder width
Sleeve length
Sleeve opening
Neck width
Neck rib

Also specify:

Fabric
GSM
Drape
Print
Fit reference

“Oversized” alone is not a specification.

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Common Tech Pack Mistakes

1. No Measurements

The manufacturer has to guess.

2. Only Front Sketch

Important back details may be missed.

3. Fabric Described Only as “Cotton”

Not enough information.

4. No GSM

Fabric weight remains unclear.

5. No Logo Dimensions

Artwork size becomes subjective.

6. No Placement Measurements

Logo position can vary.

7. No Label Specification

Branding can be inconsistent.

8. No Revision Control

Old specifications can accidentally be used.

9. Copying Another Brand's Size Chart

Your target fit may be completely different.

10. No Physical Sample Testing

A tech pack is not a substitute for product testing.

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Tech Pack Checklist

Before sending your file to a manufacturer, confirm you have:

✓ Product name
✓ Style number
✓ Front technical sketch
✓ Back technical sketch
✓ Fabric composition
✓ GSM
✓ Fabric construction
✓ Colors
✓ Measurement chart
✓ POM guide
✓ Size grading
✓ Construction details
✓ Stitching details
✓ Trims
✓ Logo dimensions
✓ Logo placement
✓ Print artwork
✓ Main label
✓ Size label
✓ Wash-care label
✓ Hang tag
✓ Packaging
✓ SKU information
✓ Revision number

For complex products, additional information may be required.

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Questions to Ask Your Clothing Manufacturer

Before sending the tech pack, ask:

Do you manufacture this product category?

Can you source the specified fabric?

What is the MOQ?

What is the minimum per color?

Can you develop custom patterns?

Can you make samples?

Can you provide private labeling?

Can you manufacture custom trims?

What printing methods are available?

Can you provide custom packaging?

What technical information do you need from us?

This prevents unnecessary development work with an unsuitable supplier.

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Tech Pack vs Sample

You need both.

Tech Pack

Defines what should be made.

Sample

Shows how those specifications translate into a physical garment.

The strongest manufacturing process uses both together.

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Tech Pack vs Pattern

These are different.

Tech Pack

Contains specifications.

Pattern

Contains the shapes used to cut garment components.

The pattern is developed based on:

Measurements
Fit
Construction
Fabric behavior

A tech pack does not replace pattern making.

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Tech Pack vs Size Chart

A size chart is only one component of the tech pack.

A complete tech pack also includes:

Fabric
Construction
Artwork
Trims
Labels
Packaging

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How a Tech Pack Helps With Manufacturing Cost

Suppose you ask:

“Price for 500 T-shirts?”

The manufacturer doesn't know enough.

Now suppose you provide:

500 Men's Oversized T-Shirts
220 GSM 100% Cotton Single Jersey
3 Colors
S–XXL
Front Screen Print
Back Print
Custom Main Label
Wash-Care Label
Hang Tag
Individual Packaging

The manufacturer can understand your requirement much more clearly.

Better specifications generally lead to more meaningful quotations.

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How a Tech Pack Helps With Quality Control

During bulk inspection, the garment can be checked against:

Measurements
Fabric
Color
Construction
Print position
Logo size
Labels
Packaging

Without documented specifications, disagreements become more subjective.

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How a Tech Pack Helps With Repeat Orders

Imagine you manufacture a successful T-shirt today and reorder it six months later.

Without documented specifications, questions arise:

Which fabric?

Which GSM?

Which neck rib?

What chest measurement?

What logo size?

Which print position?

A finalized tech pack creates a permanent product reference.

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How to Send a Tech Pack to a Manufacturer

Send the tech pack together with:

Order quantity
Required colors
Required sizes
Target timeline
Delivery destination
Reference samples where available

Then ask the manufacturer to confirm:

Fabric availability
MOQ
Sampling requirements
Production feasibility
Approximate commercial requirements

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Clothing Manufacturing With Dpassion

Dpassion supports suitable B2B product-development and manufacturing requirements across:

T-Shirts | Polo T-Shirts | Track Pants | Joggers | Shorts | Jackets | Tracksuits | Hoodies | Sports Jerseys | Leggings | Sports Bras

and suitable:

Activewear | Gym Wear | Sportswear | Corporate Apparel | Promotional Apparel

Depending on your project, businesses can discuss:

Custom Manufacturing | Private Label | White Label | Custom Printing | Bulk Production

For custom manufacturing enquiries, send:

Tech Pack / Reference Design | Product | Quantity | Fabric | GSM | Colors | Sizes | Branding | Packaging | Delivery Location

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Frequently Asked Questions

What is a clothing tech pack?

A clothing tech pack is a technical document containing garment specifications such as measurements, fabric, construction, artwork, trims, labels and packaging.

Do I need a tech pack for clothing manufacturing?

For customized garments, a tech pack is highly useful. Basic standardized products may require less documentation.

What should a tech pack include?

It should typically include technical drawings, measurements, fabric specifications, construction, BOM, artwork, trims, labels, packaging and revision information.

What is BOM in clothing manufacturing?

BOM means Bill of Materials. It lists the fabrics, trims, labels and other components needed for the garment.

What is POM in a tech pack?

POM means Point of Measurement. It explains how each garment measurement should be taken.

What is GSM?

GSM means grams per square metre and describes fabric weight.

Can I make a tech pack myself?

Yes. Founders can create basic tech packs, although complex garments may benefit from an experienced technical designer or pattern maker.

Can I manufacture clothing without a tech pack?

It may be possible for standardized garments, but custom products benefit greatly from documented specifications.

Can AI make a tech pack?

AI can help structure and organize technical information, but measurements, construction and final specifications should be validated by experienced people and physical samples.

Is a tech pack the same as a size chart?

No. A size chart is only one part of a tech pack.

Is a tech pack the same as a pattern?

No. A tech pack communicates product specifications, while a pattern provides the garment component shapes used for cutting.

Can I send a photo instead of a tech pack?

A photo can be useful as a reference but generally does not contain enough technical information for accurate custom manufacturing.