Definition
A tech pack is the technical specification document that tells a manufacturer exactly how to build a product, down to fabric, measurements, trims, artwork placement and packaging. It is the single reference both sides work from, so a sample approved this year can be reproduced next year without guesswork. Skip it and you are relying on memory and scattered email threads, which is where merch programs quietly go wrong.
Definition
A tech pack is a structured file, usually a spreadsheet or PDF, that collects every instruction a factory needs to quote, sample and produce an item. It typically holds a technical drawing, a bill of materials, a points of measure table with tolerances, colorways, trims, labels, artwork files and packing instructions. A tech pack for a branded hoodie would state 320 GSM brushed fleece at 80 percent cotton and 20 percent polyester, a chest width of 56 cm at size M with a 1 cm tolerance, a drawstring in Pantone 19-4052, and a 25 cm wide screen print positioned 8 cm below the collar seam.
How a tech pack works
A tech pack starts with the person who owns the product and travels with it through costing, sampling, production and quality control. The factory prices from it, cuts patterns from it, and inspects finished goods against it. Every revision carries a version number and a date, so nobody is quietly working from last month's file.
The heart of the document is the points of measure table. It lists each dimension, body length, chest width, sleeve length, hem opening, for every size in the range, with a tolerance beside it. Next to it sits the bill of materials, which names every fabric, thread, cord, zipper and label by supplier reference rather than by description. "Black zipper" is not a specification. "YKK #5 Vislon, color 580" is. The same discipline applies to color: name the Pantone code, the fabric weight in GSM, and the exact artwork file, not a screenshot pulled from a deck.
The trade-off is effort. A proper tech pack takes hours to build and needs an update every time a sample comes back with a correction. That feels slow until the first reorder arrives half a size smaller with the logo two centimeters too low. For decorated blanks, a lighter spec covering artwork, placement, size and color is often enough. For anything cut and sewn to your own design, the full tech pack is what stands between your brand and an expensive surprise.
Tech packs in branded merch
- Locking in reorder consistency. A documented tech pack means the hoodie you ship to new hires in March matches the one from last October, even if production moves to a different factory. That consistency is what makes merch feel like a brand.
- Getting quotes you can actually compare. When every manufacturer prices against the same fabric, trims and tolerances, the quotes differ on cost and capability instead of on interpretation. Vague briefs produce vague pricing.
- Settling quality disputes without drama. If a delivery falls outside the tolerances written in the tech pack, the case is closed. A documented standard turns an argument into a straightforward remake or credit.
A tech pack is a detailed specification document that gives a manufacturer every measurement, material, color and construction instruction needed to produce a product correctly.
5 tips to elevate your Tech pack strategy
| Tip | Steps |
|---|---|
| Write measurements, not adjectives | Replace words like "slightly oversized" with a numbered points of measure table and a tolerance for every dimension. |
| Version every change | Add a version number and date to each revision so the factory always knows which file is current. |
| Reference codes, not colors | Specify Pantone codes, fabric composition and supplier part numbers instead of descriptive words. |
| Attach production-ready artwork | Include vector files, stitch files and placement diagrams directly in the pack rather than sending them separately. |
| Update after every sample | Fold each round of sample comments back into the pack so the approved version matches the physical product. |
Key Terminologies
Frequently Asked Questions
What should a tech pack include?
A tech pack should include a technical drawing, a bill of materials, a points of measure table with tolerances, colorways, trims and labels, artwork with placement and size, and packing instructions. Add a version number and date so revisions stay traceable.
Who writes the tech pack?
The brand or its design and product partner writes the tech pack, then shares it with the manufacturer. Factories often add technical feedback during sampling, but the brand owns the document and approves every change.
Is a tech pack the same as a spec sheet?
A spec sheet is usually one part of a tech pack, covering measurements or decoration details. The tech pack is the full package that also includes drawings, materials, artwork and packing requirements.
Do I need a tech pack for simple printed merch?
For printing on existing blanks, a decoration spec with artwork, placement, print size and color codes is often enough. A full tech pack becomes necessary once a product is custom cut and sewn.
How often should a tech pack be updated?
Update it after every sample round and before every production run. An out-of-date tech pack is worse than none, because both sides trust a document that no longer matches the approved product.
