What is a tech pack? A simple guide for bag brands

30 September 2026  ·  TARS Creations

A tech pack (technical specification) is the document that tells a factory exactly how to make a product. It replaces guesswork with a single reference that everyone can check, from design to inspection.

What goes in it

• Drawings: flat views of the front, back, sides, base and interior, with callouts.
• Measurements and tolerances: every key dimension with the acceptable variation.
• Bill of materials: leather, lining, reinforcement, thread and adhesives, with specifications.
• Hardware: zips, buckles and fittings listed by supplier reference, with finish and quantity.
• Construction: stitch type and density, edge finishing, folding and assembly notes.
• Branding and labels: logo method, size, position, colour and label details.
• Packaging: individual pack, carton size, and marks.
• Quality and testing: inspection points, defect limits and tests required.
• Revision history and approvals: who approved what, and when.

Keeping it useful

• Keep one current version, and number every revision.
• Add a swatch or colour standard for any colour that must match.
• Update it after every sample stage, so the next sample builds on what was agreed.

If you don’t have a tech pack yet, send us your sketches and references. We can help you turn them into one.

Related

• From sketch to sample: what a leather goods manufacturer needs from you

  The information that turns an idea into a first sample quickly, and avoids rounds of correction.