What a tech pack should contain
- Front and back flat sketches with proportion and seam placement
- Yarn composition, count or gauge, and colour references
- Measurement chart by size, in centimetres or inches — specify which
- Construction details: rib depth, neckline, placket, pocket, cuff and hem
- Trims list with supplier references where relevant
- Labelling and packing requirements, including artwork files
Measurement points, not just measurements
A measurement chart only works if everyone measures the same way. State the points explicitly: chest measured flat under the armholes, body length from high point shoulder, sleeve length from centre back neck, and so on.
Photographs of a measured sample with a tape in shot remove almost all ambiguity, and cost nothing to produce.
How size grading differs for knitwear
Knitwear stretches, so grading rules that work for woven garments do not transfer cleanly. Body width and length usually grade at different increments, and ribbed waistbands or cuffs may need to be graded more conservatively to keep recovery.
If you already sell knitwear, sending your current size chart is the fastest route to a correct fit. If you are starting from scratch, a supplier should be able to propose a base size and grading for your market.
Tolerances: the clause that prevents arguments
No knitted garment is produced to the exact millimetre. A normal commercial tolerance might be around plus or minus one centimetre on body measurements, with tighter control on critical points such as neck width.
Agree the numbers before production and write them into the order confirmation. This is what makes a final inspection objective rather than a matter of opinion.
If you do not have a tech pack yet
Send a physical reference sample and your size chart, or even good photographs with your target measurements. We can build the specification around it and send it back to you for confirmation before sampling.
Getting a written specification agreed at this stage is the single most effective way to avoid disappointment on a first order.