What is Tech Pack?

A tech pack is a written and drawn definition of how a garment is to be made: the technical drawing, measurement chart, bill of materials, construction details and label and packing information are collected in one file. The brand or designer prepares it; the manufacturer quotes from it, makes samples and produces from it (Techpacker, July 30, 2026). In Turkey it is called teknik föy; föy comes from French feuille, and the Turkish Language Association (TDK) dictionary records it as “a document containing brief information.”

What a tech pack contains

The Turkish Ministry of National Education (MEB) cutting module presents the document as the output of model analysis and calls it a “model definition form” (model tanımlama formu); the example in its T-shirt module is titled “Model Sheet” (Model Föyü). According to the cutting module, the form contains the following (pp. 8–9):

MEB notes that the measurement chart is not always filled in and should be for a customer order with special or different measurements. The tech pack lists of software vendors build on this core and differ from one another: Wave PLM (May 9, 2025) lists measurement and grading information, Pantone-coded colors, print and embroidery specifications (placement and size for embroidery), the bill of materials (BOM), labels and proto comments; Techpacker (July 30, 2026) lists the version number, construction and stitching notes, a cost sheet and the revision history. Agree in writing with the factory which sections are required.

Example: MEB’s T-shirt model sheet

The model sheet in MEB’s T-shirt module (section 1.1, p. 4) gives construction information next to a dimensioned drawing: rib at the neck and sleeve openings, 0.7 cm cover seam, 4-thread overlock, 7 mm seam allowance. The materials to be bought are piqué fabric, thread in the fabric color, 1x1 rib and a care label. The module’s quality table gives a tolerance for each point of measure (section 1.3, p. 5). The values below are a training example, not an industry standard:

When and what it is used for

• Before sampling: According to MEB, the form is prepared by the time of sample sewing at the latest, taking customer requests and quality criteria into account (Cutting, p. 8).
• Samples and patterns: According to Wave PLM, the proto sample is measured against the graded measurements in the tech pack, and if the measurements change, a new sample is made (May 9, 2025). Uphance writes that the measurement chart guides the preparation of fit samples (July 31, 2024); Wave PLM says measurement charts help pattern makers and the quality control team keep fit consistent (November 21, 2025).
• Quality control: QIMA asks for points of measure, standard measurements for each size and acceptable tolerances to be stated clearly in the product specification (July 28, 2022); at final inspection the pieces are compared against them. Which sampling plan (AQL) is used is written separately.
• Contract and version: Tekstil Rehberi’s model contract clause for contract manufacturing asks that products conform to the approved sample, the tech pack and the measurement tolerances, and the purchase order should state the tech pack version. Wave PLM (June 3, 2026) recommends recording who changed what, when and why in each version, and sending only approved versions to the factory; this is a software vendor’s recommendation, not a standard. For how the tech pack fits into CMT and full-package orders, see the contract manufacturing guide.

How a tech pack differs from related terms

Preparing one

What the tech pack does not state, the factory fills in with its own assumption (Tekstil Rehberi note), so write down the seam allowance, stitch type, label placement and packing method too. Put the composition, weight and width in the fabric line: use the fabric GSM calculator for weight, the fabric consumption calculator for the fabric needed for an order, and the shrinkage calculator for the cut size from a target measurement. Studios that prepare tech packs can be found among fashion design studios, pattern makers working from them among pattern making and grading services, and sample sewers among sample making workshops. For the whole flow, see the garment manufacturing process guide, and for ownership of the tech pack and pattern when working with a private label manufacturer, see private label clothing manufacturers in Turkey.

Frequently asked questions

What is a tech pack called in Turkey?

Teknik föy is the Turkish name used for the tech pack. MEB’s training modules call the same document “model definition form” and “model sheet.” Because teknik föy is also used for a material supplier’s product data sheet, make clear from the start which document is meant.

Who prepares the tech pack?

According to Techpacker, it is usually prepared by the person responsible for turning a design into a product ready for production: a fashion designer, technical designer, product developer or, at small brands, the founder. The factory uses it to quote, make samples and produce.

Is a measurement chart (spec sheet) the same as a tech pack?

No. The measurement chart is a section of the tech pack: points of measure and measurements for each size. The tech pack also holds the drawing, materials, construction details, labels and packing information.