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. UA Storm technology repels water without sacrificing breathability Iso-Chill fabric helps disperse body heat, making it feel cool to the touch Lightweight stretch-woven fabric is durable & comfortable 4-way stretch material moves better in every direction Stretch-engineered waistband for superior mobility & insane comfort Flat-front, 4-pocket design Style #: 1370083 Inseam: 9" 53% Nylon/39% Polyester/8% Elastane