A sketch or reference garment can help explain a clothing idea, but a manufacturer still needs to know what to make. An apparel tech pack brings the design, measurements, materials, construction, and finishing details into one controlled document that a supplier can review for a quote and sample.
The exact pack depends on the garment and how developed the design is. A simple stock-style item needs fewer details than a custom fit, fabric, wash, or construction. Mark unknown details as open questions so a supplier does not mistake an assumption for an approved requirement.
Start with clear garment views
Include flat technical drawings of the front and back, plus close-up views for details that are difficult to see at a distance. Mark the location and size of pockets, seams, closures, panels, openings, labels, prints, embroidery, and other design features that affect construction.
Use callouts to point to the relevant detail. A photo or inspiration image can show the look you want, but label it as a reference and explain which parts are examples versus requirements. Avoid relying on a single fashion image to communicate dimensions or construction.
Add measurements and size information
Provide a measurement chart for the sample size and define each point of measurement so the supplier knows where and how to measure. Include the target measurement and an acceptable tolerance for dimensions that affect fit or function. Identify the base size used for the sample.
If the garment will be made in several sizes, include the grading rules or ask the supplier to confirm how it proposes to grade the pattern. Review the size range and fit assumptions before approving bulk production. The appropriate measurements and tolerances depend on the garment and intended fit.
List fabrics, trims, and components
Create a bill of materials for the inputs that affect the garment. Depending on the design, list the main fabric composition and weight, lining, thread, buttons, zippers, elastic, drawcords, labels, and other trims. Include color references, finish, stretch or drape requirements, and supplier or material references where known.
State who is responsible for sourcing each material. Some suppliers offer a full package and source fabric and trims; others expect the buyer to provide them or use a cut-make-trim arrangement. Ask the manufacturer to confirm its sourcing model, any minimums for fabric or trims, and which substitutions require your approval.
Specify construction and decoration
Describe construction details that affect the result, such as seam placement, topstitching, reinforcement, lining, closures, and finishing. If stitch type, seam allowance, or another technical detail is critical, identify it clearly or ask the supplier to recommend a production-ready option for your approval.
For print, embroidery, patches, or other artwork, include the file or reference, dimensions, placement, colors, and any relevant production notes. Identify the version of each artwork file. Ask the supplier to confirm that the method and placement are feasible for the selected material.
Include labels and packaging
Specify main labels, size labels, care information, hangtags, polybags, inserts, and carton requirements that are part of the order. State language and placement requirements where relevant. If an artwork or care instruction is still being finalized, mark it as pending and agree when it must be approved.
Packaging assumptions can change the quote and production schedule. Ask the supplier to list what is included, what is priced separately, and what needs an additional sample or proof.
Use the tech pack through sampling
Put a revision number and date on the document. Send the same version to every supplier you want to compare, and ask each one to identify any unclear or infeasible detail before quoting. Keep the quote tied to that revision so you can compare offers on the same garment.
When a sample arrives, review it against the pack and record the requested corrections by location and measurement. Ask how many sample rounds are included, what each revision costs, and how long it takes. Update the revision when an agreed change is made, and make sure the manufacturer confirms which version will be used for the pre-production sample and bulk run.
Protect the design and control files
Share only the files needed for the stage you are discussing. Keep editable originals and dated PDF copies in your records, and identify which version the supplier received. If the design is commercially sensitive, consider appropriate confidentiality and intellectual-property protections for your situation before sharing detailed files.
A tech pack is useful when both sides understand it. Ask the supplier to confirm the open points, material plan, sample scope, and quotation assumptions before paying for development or approving production.