Day: October 25, 2026

How a cotton gusset lining and a self-fabric gusset differ in comfort, moisture, seam bulk and care in boxer briefs and briefs, and what to check before approving the pattern.

How to design a phone pocket for leggings: internal size, hip or waistband position, pocket fabric stretch, bounce and sag, seam strength and tests with real phones.

How bamboo viscose, modal and cotton behave in underwear, what to test for softness, bagging, pilling and seam strength, and how FTC rules treat bamboo-based fibre names.