A swimsuit that fits the sample can still shrink after the first wash
Fit approval is a snapshot. Dimensional change in the knit shows up later, so agree a shrinkage tolerance before bulk and test the fabric lot you will actually cut.
Chlorine, sunscreen, and sunlight expose what a sample color approval misses
Sample color under office light tells you little about how a dye survives chlorine, sunscreen, and UV. This guide covers the failures that show up after bulk ships, the tests that predict them, and the points to write into the tech pack.
