Tech Pack or Reference Image: What Does a Factory Need?
Tech pack vs reference image: learn what an apparel factory needs to review fit, materials, construction, branding and sampling before quoting your product.
A reference image communicates visual direction; a tech pack records product decisions. A factory can often begin a development conversation from either one, but the amount of interpretation, sampling and clarification will differ. The best starting document is the clearest evidence you actually have.
What a reference image shows
Photos can communicate silhouette, proportion, visible seams, styling and color direction. They rarely confirm measurements, fabric composition, inside construction, lining, tolerances, artwork dimensions or packaging. Front, back and detail views reduce guesswork.
What a tech pack should control
A practical pack records flat sketches, construction notes, bill of materials, colorways, artwork, points of measurement, grading or size information, label placement and packing instructions. Revision numbers help everyone work from the same version.
How to start without a finished tech pack
Mark each decision as fixed, preferred or open to recommendation. Share target market, quantity, size range and timing context. The development team can then build a question list and identify which details must be resolved before pattern work or costing.
Keep approvals connected
When the sample changes, update the specification rather than leaving the decision only in chat messages. The approved sample and latest written information should agree before production.
Practical application
A common mistake to avoid
A reference image is often treated as permission to copy every visible detail while invisible details are guessed. Instead, identify inspiration, required features and changes. Buyers should also avoid mixing several conflicting references without saying which one controls each area.
What to record
Maintain one revision-controlled source of truth. Link each sample comment to the drawing, measurement, material or artwork it changes. Archive old versions but mark the current version clearly so production staff do not rely on an earlier file.
How to use this in a supplier conversation
Ask the development team to return a list of assumptions before pattern work. Review that list and convert important assumptions into written specifications. This is a practical way to build a clearer brief even when the project begins with images.
Buyer checklist
- Front, back and detail references
- Known measurements and size range
- Fabric and trim direction
- Branding artwork
- List of fixed and open decisions
MANRALIN perspective
MANRALIN can review product references or technical information. Our design and pattern room helps organize open questions before the sample is treated as an approved production standard.