We flattened out the fibers and added some science to create a game-changing fabric that quickly pulls heat away from the skin-keeping you calm, cool, and crushing at max capacity. Lightweight, stretch woven outer fabric delivers superior comfort & durability Built-in Iso-Chill mesh compression shorts disperse body heat, making it feel cool to the touch 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Flat knit waistband with internal drawcord Style #: 1364858 Inseam (outer shorts): 5" Inseam (liner shorts): 7" Outer shorts: 100% Polyester Inner shorts: 90% Nylon/10% Elastane Imported Fitted: Streamlined fit that’s not too tight or too loose. Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners