A tech pack converts a garment design into instructions that a factory can actually manufacture. It is one of the most important documents for controlling sample development and bulk production.
Why This Matters
Without a clear tech pack, factories are forced to guess details such as GSM, seam type, print placement or measurement tolerance. That creates repeated samples and inconsistent bulk output.
Key Components
- Flat sketch or garment drawing
- Fabric construction, GSM and width
- Measurement specification
- Point-of-measure diagrams
- Seam and stitch construction
- Print or embroidery size and placement
- Labels and trims
- Colourways
- Packing instructions
- Revision history
Practical Method
Start with the final intended garment, not a generic template. Use measurable specifications wherever possible. Every important visual detail should have a technical instruction, and every revision should be dated and numbered.
Working Example
A polyester sports jersey tech pack may specify 160 GSM bird-eye polyester, shoulder seam construction, chest width by size, sleeve opening, sublimation artwork position, neck label and carton packing.
What Buyers and Factories Should Check
- Confirm fabric specification
- Use realistic measurement tolerances
- Add artwork dimensions
- Define stitch types
- Include label placement
- Control revisions
Common Mistakes
- Using images without dimensions
- Missing tolerances
- Changing fabric without updating measurements
- Sending multiple conflicting files
- Leaving print placement vague
Best Practices
- Keep one master tech pack
- Use consistent measurement names
- Link approved samples to revision number
- Review with factory before bulk
Final Thoughts
A strong tech pack reduces questions, sampling time and production risk. For polyester garments, fabric behaviour and decoration method should be documented as carefully as garment dimensions.
Need Help With Polyester Fabric Sourcing?
Send Walrus – Yes India Can your garment type, GSM, DIA / width, colour, quantity and end use. We can help shortlist suitable polyester fabric options for bulk production.
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+91 90420 77722
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