The LENT men's functional underpants are made of quick-drying, vapour-permeable, stretchy, warm and structured material with COOL-DRY, which excels in quick moisture wicking, the ability to absorb odors and keep the body warm, have an anatomically shaped, snug fit and elastic flat seams only on the inside of the legs. Material composition: 65% polyester, 27% nylon, 8% elastane.