How to Create a Tech Pack for Your Clothing Brand

A tech pack (technical package) is the blueprint for your garment. It is the document you send to a manufacturer that contains every specification needed to produce your design exactly as you envision it. Think of it as the architectural drawing for your clothing.

A good tech pack eliminates guesswork, reduces sampling rounds, and ensures what you get matches what you designed.

1. Flat Sketches

Front, back, and side views of the garment drawn to proportion. These should clearly show:

You do not need to be an artist — clean, clear line drawings work perfectly. Adobe Illustrator is standard, but even detailed hand drawings can work for the first round.

2. Bill of Materials (BOM)

A complete list of every material used in the garment:

3. Measurements / Grading

A size chart showing key measurements for each size you plan to produce:

Include your grading rules — how much each measurement increases between sizes.

4. Construction Details

Close-up callouts for specific construction techniques:

5. Colour and Print

6. Packaging

How you want the finished product packaged:

Being too vague: "Make it like this photo" is not a specification. Provide measurements, not adjectives.

Forgetting tolerances: Specify acceptable tolerance ranges (e.g., ±0.5cm on body measurements).

No reference samples: If you have a garment you want to replicate or use as a starting point, send it along with your tech pack. It is worth more than a thousand words.

Incomplete grading: If you only provide one size and expect the manufacturer to grade the rest, you may not like the results. Provide a complete size chart.

Not every brand starts with a professional tech pack, and that is fine. At White Cotton, we work with brands at every stage:

The more detail you provide upfront, the faster and cheaper the development process.