A tech pack is useful only when it turns an idea into instructions that another team can interpret consistently. A beautiful flat drawing without measurements, construction notes or artwork placement may communicate style, but it does not yet define the product well enough for an efficient sample.
Before sending a development request, use the following structure to reduce assumptions, make quotations easier to compare and create a stronger record for sample review.
Start with a clear product overview
Identify the style name or code, product category, intended wearer, fit direction and version date. Include front and back flats plus detail views where construction is not obvious. If a reference garment is important, explain which features should be followed and which should change.
Version control matters because measurements and artwork often change during development. Put the revision date on every export and keep one decision log rather than sending conflicting notes across separate messages.
Build a measurement specification
A measurement chart should define each point of measure, the base size, grading direction if available and acceptable tolerance. Use diagrams for measurements that could be interpreted in more than one way. Terms such as body length, shoulder width or rise can be measured differently unless the method is visible.
Prioritize measurements that control fit and balance. Decorative details can be adjusted later, but an unclear body length, chest, sleeve, rise or inseam can make the first sample difficult to evaluate.
Describe construction and workmanship
- Seam type and seam location
- Stitch type, visible stitch rows and approximate width
- Hem, cuff, waistband and neckline construction
- Pocket shape, opening and reinforcement
- Zipper, drawcord, snap or elastic requirements
- Internal finishing, binding or overlock expectations
Specify materials without closing useful options
List fiber composition, fabric structure, target weight, stretch direction, hand feel and performance needs. If an exact mill article is mandatory, identify it. If alternatives are acceptable, state which characteristics cannot change and which may be adjusted to reach the target.
Attach physical swatches or a traceable material reference when color and texture are critical. Screen color alone is not a reliable approval standard for fabric.
Prepare artwork, labels and packaging details
| Component | Information to provide | Approval method |
|---|---|---|
| Print or embroidery | Vector artwork, size, placement and color reference | Strike-off or decorated sample |
| Main label | Dimensions, fold, material and artwork | Physical label sample |
| Care label | Approved copy and layout | Artwork review plus sewn sample |
| Hangtag or bag | Size, material, artwork and attachment | Physical or digital proof |
Create a usable sample review
Review the sample against the same tech pack sent to the supplier. Separate objective deviations—such as measurement, missing construction or incorrect artwork—from preference changes discovered after seeing the garment. This distinction keeps responsibilities and revisions clearer.
If your team needs more product-development support, the OEM/ODM apparel manufacturing page explains how a collaborative ODM route can fill gaps before production.
Turn the tech pack into a working control document
A tech pack should evolve in a controlled way during sampling. Begin with a baseline version, then issue a new dated revision after each review. Do not overwrite the original without recording what changed. A short change log helps the pattern, sourcing, decoration and production teams identify which pages require attention.
Use consistent style codes, color names and size labels across every page. A fabric page that uses one style name while an artwork page uses another creates unnecessary doubt. File names should also identify the style, component, colorway and revision. This is especially important when several garments share similar construction or branding.
Separate requirements from references. A photograph may communicate mood or silhouette, but it should not silently define every visible detail. Add notes such as follow the pocket shape only or use this image for wash appearance. When two references conflict, state which one controls the decision.
During sample review, annotate the measurement chart and construction pages instead of writing one long message. Photographs with arrows can clarify a physical issue, but connect each photograph to a written correction and a measurable outcome. The supplier should know exactly which drawing, measurement or note must be revised.
Before approving the pre-production version, remove superseded artwork, duplicate pages and exploratory options. Check that every colorway has the correct component list and that all labels and packing details are represented. A smaller, accurate final pack is safer than a large file containing obsolete decisions.
Store the approved sample comments with the final tech pack. If the garment is repeated next season, this record explains why a pattern, stitch or material was selected and which deviations were previously rejected. It also gives new team members a reliable starting point for repeat orders.
Questions to ask before you proceed
- Can every measurement be reproduced from its diagram?
- Are construction notes visible at the relevant detail?
- Do material names match the bill of materials?
- Are artwork dimensions and reference points defined?
- Does every page show the same revision?
- Can the supplier identify the final approval standard without consulting old messages?
Next steps
If you are preparing a new collection, review our OEM/ODM apparel manufacturing route and custom apparel product range, then share your project brief with the product category, target quantity, reference images, material direction and required delivery window. Those details make the first feasibility review more useful.