What Belongs in a Custom Apparel Tech Pack?

Quick Answer: A tech pack is the document a factory works from: measurements, construction, materials, colourways and artwork placement for one garment.

A tech pack is the document a factory works from: measurements, construction, materials, colourways and artwork placement for one garment. Without one, every sample becomes a conversation, and each production run drifts a little further from the original intent.

Sellers moving from blanks to custom development meet this document at the first sample request. A tech pack that answers the obvious questions reduces sample rounds from four to one, and it protects the fit when production scales.

What Goes Into a Tech Pack?

Start with a technical flat drawing of the front, back and any detail the factory must reproduce. A flat shows seams, panel breaks and trims that a photograph cannot, and it is the page everyone refers to during review.

Add the measurement table with a tolerance per point. Chest, body length, sleeve length and hem width are the minimum, and each row needs a target and an acceptable range so a submitted sample can be graded objectively rather than judged on impression.

Include a grading note for each size. A file that lists one size and says grade accordingly leaves the pattern maker guessing, and the guess shows up in the largest sizes first.

Then specify materials with a reference for each one. Fabric composition and weight, thread type, labels, zips and packaging all belong in the tech pack, and a reference swatch attached to the file prevents a substitution that looks close on paper and different in hand.

Construction Details That Prevent Rework

Name the stitch types and seam finishes. A cover-stitched hem, a flatlock seam or a taped neck each changes how the garment behaves, and a factory will choose its default unless the tech pack says otherwise. Defaults are where fit quietly changes.

Specify label placement and content. Care labels, country of origin statements and fibre percentages are legal requirements in most markets, and their position affects comfort as much as compliance. Building them into the tech pack means nobody adds them later.

Document artwork placement with coordinates. Print or embroidery positions measured from a named reference point stop the drift that appears when artwork moves a quarter inch between runs. The measurement conventions in Print placement standards for custom apparel transfer directly into a tech pack.

Build the Tech Pack Before the First Sample

Write the document, then request the sample. Factories quote from the pack, so a complete file produces a comparable quote while a partial one produces a guess. The difference shows in the sample rather than in the price.

Review the sample against each line and mark pass or fail. A written record turns a sample round into an objective review, and it gives the factory specific points to correct instead of a general request to improve.

Keep the approved sample as the reference piece. The tech pack describes intent while the approved sample shows the result, and the two together settle any disagreement about what was agreed. The reviews set out in Tech packs for custom apparel production follow that sequence.

Version Control Keeps a Tech Pack Useful

Date every revision and note what changed. A factory producing from version three while the brand works from version five builds the wrong garment, and the error is expensive on a full run. One file, one current version, one changelog.

Limit who can edit. Marketing changes to colour names should not rewrite a measurement table, and the two belong in different sections. Separating the technical pages from the commercial ones prevents accidental edits that production follows.

Keep a reference photo of the approved sample inside the file. Pictures settle questions about stitch density, trim colour and label position faster than written notes, and they travel better between factories.

Then align the document with the business model. A program built for stock and dropshipping needs a tech pack that can be reordered without revision, while bulk production tolerates more change between runs. The trade-offs are compared in Print on demand vs dropshipping: which model fits?

Tech Pack Details That Reach the Customer

Size range is a specification, not an afterthought. The constraints are covered in Plus size apparel in print on demand.

Material choices carry compliance weight. Where a recycled material is involved, the paperwork needs to match the claim.

Then keep the file alive after launch. A change in supplier, a new trim or a revised care instruction updates the document, and the flagging works best through a single owner rather than a shared inbox. Assign that role before the second production run, and start your custom order today with a tech pack the factory can build from.

What Each Tech Pack Section Controls

A tech pack is the document a production run is measured against, so every section removes a decision from the floor. Measurements and tolerance define fit, construction notes define assembly, and the print area defines where the artwork lands once the garment is sewn rather than while it is flat.

Limitations: Where a Tech Pack Cannot Substitute for a Sample

A document describes a garment, and the first physical unit is still what confirms it. Fabrics vary by lot, so a specified weight and fibre can behave slightly differently between deliveries, and a published size tolerance of plus or minus one inch exists precisely because that variation is expected rather than exceptional.

Placement is the second area where paper is not enough. Panels are cut and sewn after printing on all-over work and joined by hand in general, so artwork near a seam can shift relative to the flat layout. A tech pack sets the intent, and an approved sample fixes the reference the run is compared against.

Frequently Asked Questions About Tech Packs

Is a tech pack necessary for a small run?

It is worth writing even for a small run, because the sections that matter most are the ones a later repeat cannot reconstruct from memory. Measurement bands and placement notes are what keep a second run consistent with the first.

Which section is most often missing?

The print area defined against the sewn garment rather than the flat pattern. Without it, placement drifts between units, and the drift is only visible once the pieces sit side by side.

How detailed should the construction notes be?

Specific enough that two operators would produce the same result. Seam type, stitch and finish belong in the pack, along with the seams and curves that artwork should stay clear of.

Should a tech pack include an order quantity?

Volume sits outside the document itself, but minimum order quantities and lead time affect which construction choices are practical, so those numbers belong in the conversation that surrounds the pack.

Our pattern team works from the measurement and tolerance section first, because that is the part of the pack a production run is checked against once the units exist.

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Key Takeaways

• Tech Pack Details That Reach the Customer Size range is a specification, not an afterthought.
• Quick Answer: A tech pack is the document a factory works from: measurements, construction, materials, colourways and artwork placement for one garment.
• Fabric composition and weight, thread type, labels, zips and packaging all belong in the tech pack, and a reference swatch attached to the file prevents a substitution that looks close on paper and different in hand.
• Building them into the tech pack means nobody adds them later.

Where This Approach Does Not Apply

Fibre statements, recycled content claims and restricted substance limits all originate in the tech pack, and a specification without supporting documentation fails the first audit.

A tech pack that stops at a standard run limits the market, and extending it means grading the pattern deliberately rather than scaling numbers.