A clothing tech pack includes everything a factory needs to produce your garment: basic product specs, measurements and grading, materials and colorways, components, close-up shots, flat sketches, print files, labels & tags, package design, and a bill of materials. If any section is missing, a manufacturer can't quote or cut accurately — so this is the checklist that turns a design into a product a factory can actually make.
If you've been told you need a "tech pack" but aren't sure what actually goes inside one, this is the complete breakdown. A tech pack is the technical document a brand hands a manufacturer to produce a garment, and it follows a predictable structure. Below is every section, what it's for, and how it looks inside a real tech pack generated with Genpire.
Basic product specs
The summary page: product type, fit, intended use, season and target market. It tells the factory at a glance what they're making and for whom, and sets the context for every other section.
Measurements and grading
The points of measure — chest, length, sleeve, and so on — with the numbers for your base size, plus grading rules that scale those measurements up and down across the size range. This is what lets a factory cut a garment that actually fits.
Materials and colorways
The fabric, its weight and composition, and the approved colorways (often with Pantone references). Manufacturers use this to source the right materials and match colour accurately across a production run.
Flat sketches and close-up shots
Straight-on technical drawings of the garment — front, back and side, with no model — plus close-ups of the details that matter. Flats show seams, pockets, stitching and proportions so a factory can read the construction exactly.
Why flats, not photos
A factory can't cut or quote from a styled photo. Clean flat sketches remove the guesswork — they're the difference between a "maybe" and a real quote.
Labels, tags and packaging
Brand labels, care labels, hang tags and packaging requirements — placement, content and any compliance details. These are easy to forget and often required by law, so a complete tech pack spells them out.
Bill of materials (BOM)
The itemised list of every component that goes into the garment — main fabric, lining, interfacing, thread, trims, buttons or zippers — so the manufacturer can price the build and nothing is left out. The BOM is what a factory uses to calculate your cost per unit.
See all nine sections built automatically
In Genpire, you describe your product in one sentence and the AI generates all of these sections for you in the Specs tab — basic specs, measurements, materials, flat sketches, labels and a bill of materials — organised the way a manufacturer expects, then exportable as a PDF. It's the fastest way to see a complete tech pack and learn what each section should contain.
Frequently asked questions
What are the most important sections of a tech pack?
Flat sketches, measurements/grading and the bill of materials are the three a factory relies on most — they define the shape, the fit and the cost. But manufacturers expect the full set, including materials, labels and packaging, before they'll commit to a quote.
What's the difference between a tech pack and a bill of materials?
The bill of materials is one section inside the tech pack — the list of components and their costs. The tech pack is the complete document that also includes sketches, measurements, construction and packaging.
How many pages is a tech pack?
It varies by garment complexity, but a typical clothing tech pack runs several pages — one or more per section. The point isn't length; it's that every section a factory needs is present and unambiguous.
See every section of a real tech pack generated by AI — specs, measurements, flat sketches and a bill of materials — from a single sentence.