Seam Slippage Specification Targets for Buyers
Setting Seam Slippage correctly on a tech pack prevents most later disputes. Targets belong on the page before the first fabric sample.
Where to write it
Place Seam Slippage next to composition and weight so all three are quoted as one package. Working figures for Seam Slippage normally sit around below 6 mm at 60 N in mainstream production. Note ISO 13936-2 fixed load on the tech pack so nobody tests against an older revision.
Reference level
Typical activewear expectation: below 6 mm at 60 N. Record elastane content alongside Seam Slippage, because blends shift the measured value. A result outside below 6 mm at 60 N usually points to process drift rather than to the fibre itself.

Tolerances that work
Allow a small tolerance rather than a fixed number, since normal process variation exists in every lot. Keeping reference values for Seam Slippage lets suppliers quote without extra sampling rounds. Ask for conditioning details together with ISO 13936-2 fixed load, since both affect the reading.
Verification method
Confirm with ISO 13936-2 fixed load and keep the report against the bulk record. Working figures for Seam Slippage normally sit around below 6 mm at 60 N in mainstream production. Note ISO 13936-2 fixed load on the tech pack so nobody tests against an older revision.
Commercial note
Tightening beyond practical need raises cost without improving garment life, so set the tightest target only where it protects the customer. Record elastane content alongside Seam Slippage, because blends shift the measured value. A result outside below 6 mm at 60 N usually points to process drift rather than to the fibre itself.