APPAREL DEVELOPMENT GUIDE
What Is a Clothing Tech Pack? A Founder’s Guide
A clothing tech pack is a working specification for a garment. It records the decisions a pattern maker, sample room or manufacturer needs to understand the intended product.

Start with the garment, not just the mood
Reference photos communicate direction, but they rarely define every construction detail. A tech pack translates the chosen silhouette into front and back technical flats, identifies key seams and finishes, and names the style clearly. It should distinguish confirmed choices from questions that still need a decision.
The bill of materials explains what goes into it
The BOM lists the garment’s fabrics, trims, thread, labels and other components. Useful entries include composition, weight, color reference, supplier reference where known and placement. Unknown materials should be marked for sourcing or confirmation rather than invented. Supplier substitution may require another sample review.
Measurement specifications make fit discussable
Points of measurement describe how and where the garment is measured. A specification normally includes a base size and target measurements with agreed tolerances. A size chart for shoppers is different: it does not replace a garment measurement specification. Grading across sizes is a separate task unless it is explicitly included.
Construction notes connect the drawing to the sample
Document seam finishes, stitch details, pocket placement and any label or trim positions that matter. More detail is useful when it resolves a real ambiguity. The pack must be reviewed alongside the actual sample; a technically neat document cannot guarantee fit or production quality.
Treat the first version as a controlled starting point
Use a version number, date and consolidated change log. After sampling, update the specification to reflect approved changes, keeping older versions separate so suppliers do not work from conflicting instructions. Agree who approves the final pack before placing production orders.
Your next step
Explore our tech pack design service, or send your project brief for a written scope and quote.
Keep reading
- How Much Does a Tech Pack Cost?
- Garment Sample Review Checklist
- Planning Your First Small Clothing Collection
Studio service information and general preparation guidance. Package prices and timeframes are indicative; the approved project agreement governs deliverables.