How-to guide
How to write a tech pack for a bag
A tech pack is the blueprint that lets any factory make your bag the same way every time.
Quick answer
A bag tech pack includes technical drawings with measurements, a bill of materials (fabric, lining, zips, webbing, hardware), colour references, branding positions and sizes, construction notes, labels and packing instructions.
Updated by the Vago team
Key takeaways
- Draw the bag
- List materials
- Specify colours
- Mark branding
- Add construction notes
Step by step
Draw the bag
Front, back, side and inside views with every measurement.
List materials
Fabric type and weight, lining, padding, zips, webbing, buckles and hardware.
Specify colours
Pantone references for fabric, trims and print.
Mark branding
Logo positions, sizes and methods.
Add construction notes
Stitch types, reinforcement points and edge finishes.
Define packing
Labels, tags, polybags, pieces per carton and carton marking.
Tips
- Attach reference photos
- Version-control the tech pack after each sample round
Mistakes to avoid
- Leaving measurements to the factory's judgement
Terms used in this guide
- Tech pack
- A specification document that describes how a product must be made.
- Pantone colour matching
- Matching fabric, trims and print colours to a standard colour code.
- Bar tacking
- Dense reinforcement stitching at points under stress.
- Carton marking
- Labels on shipping cartons showing style, colour, size and quantity.
- Pre-production sample (PPS)
- The final sample approved before bulk production starts.
Terms explained
Trade terms used on this page, in plain language.
- Bar tacking
- Dense reinforcement stitching at points under stress.
- Webbing
- Strong woven tape used for straps and handles.
- OEM
- Original equipment manufacturing — producing a buyer's own design.
- Tech pack
- A specification document that describes how a product must be made.
- Pre-production sample (PPS)
- The final sample approved before bulk production starts.
- Pantone colour matching
- Matching fabric, trims and print colours to a standard colour code.
Questions buyers ask
Something else? Ask on WhatsApp and the production team will reply.
Do I need a tech pack to order bags?
Not always — a manufacturer can work from references — but a tech pack gives you control and repeatability.
Request a quote for custom bags
Share quantity, size, material and branding. We reply with specifications, MOQ and pricing, and arrange a sample first.