I purchased these used about a year ago, but they didn't get much wear before I outgrew them. The fabric seems to be a mix of stretchy and non-stretchy materials. These are Mizuno competitive swimming briefs, featuring a stylish design with a black and orange color scheme and a drawstring. - Brand: Mizuno - Color: Black/Orange - Style: Competitive Swimwear - Features: FINA mark is peeling - Logo: Mizuno logo Thank you for looking.