ExOfficio Men's Give-n-Go Sport Mesh Brief 92% Nylon, 8% Lycra Spandex, 94% Nylon, 6% Lycra Spandex Imported Snug active fit and lower rise are ideal for high energy activities Ultralight mesh is breathable and quick drying, keeping you cool Ergonomic fly panel constructed from classic diamond weave mesh fabric for support Contrast flatlock seams and smooth waistband prevent chafing