How to Create a Tech Pack: Step-by-Step Guide + Checklist
A tech pack is the blueprint a factory builds from, and a clear one gets you accurate quotes and a first sample that lands close to right. Our companion piece covers what manufacturers need from you; this one is the step-by-step for actually assembling the document yourself — and what to do if you would rather not.
By Raj Rahman, Founder & Managing Director

Step 1 — Draw the flats
Start with a technical flat: a clean, proportional front and back line drawing of the garment (not a fashion illustration). It anchors every other section. If you have a reference garment you want to base yours on, photograph it front and back and annotate the changes.
Step 2 — Add measurements (points of measure)
List the points of measure — chest width, body length, sleeve length, hem, neck opening, and so on — with a value for each size you plan to make. This size chart is what the factory grades your run against, so be specific. If you are unsure of measurements, provide a base size and let the manufacturer help build the grade.
Step 3 — Specify materials (the bill of materials)
- Fabric: fiber content, GSM/weight, and any wash or finish
- Trims: labels, drawcords, zippers, buttons, elastic, ribbing
- Thread and any interfacing or lining
- Quantities/placement where relevant
Step 4 — Define colorways and Pantone references
For each colorway, give the exact color with a Pantone (TCX) reference rather than a screen color, which shifts between monitors. Note which parts of the garment and trims each color applies to. Precise color callouts are what make your strike-offs and bulk match your intent.
Step 5 — Detail construction and branding
- Construction: stitch types, seam finishes, hems, ribbing, topstitching
- Branding: neck label, care label, hang tags — with placement and size
- Decoration: print or embroidery artwork, method, dimensions, and position
- Packaging: folding, polybag, barcoding, and carton requirements
A tech pack only proves itself against a physical sample, which is the next step and is covered on our sampling page.
Tools you can use
You do not need expensive software to start. Many founders build a first tech pack in a spreadsheet plus a labeled image, or in free/low-cost design tools. Dedicated tech-pack apps exist, but a clear document in any format beats a fancy one with gaps. What matters is that every field above is answered unambiguously.
Do not have a tech pack? Start anyway
If building one yourself feels out of reach, that is fine — send a sketch, a reference garment, or a clear description with your target price and quantity, and our development team builds the tech pack with you, recommending fabrics for your budget and engineering the fit before anything goes to production.
More from the blog
Tech Packs 101: What Manufacturers Actually Need From You
The exact information that gets you accurate quotes and correct samples — and what to do if you don’t have a tech pack at all.
Read article →FabricsThe Best Fabrics for T-Shirts: Cotton, Blends & More
Combed cotton, organic, CVC, tri-blend, polyester, bamboo — what each t-shirt fabric is best for, and how fiber and knit change the feel.
Read article →QualityAQL 2.5 Explained: What Quality Control Actually Means
The inspection standard behind "quality checked" — how the sampling math works and what a pass actually guarantees.
Read article →There are 44 guides in total — browse the full manufacturing and sourcing library.
