David Archy Men's 4 Pack Polyamide Fast Dry Support Pouch Trunks 77% Ultra-fine Polyamide and 23% Spandex High technology fabric is breathable and quick drying to keep you cool and fresh all day Ergonomic contour pouch design gives you comfortable support with the greatest freedom of movement, no adjustment any more, and makes you feel more confident With super lightweight and thin waistband, will not feel tight; flat-locked stitching for a seamless, no scratch experience Extremely fast drying, so you only need to pack 1 or 2 pairs when you're on the go Machine washable in cold water