UA RUSH™ is infrared technology that reflects your body's energy to help you work harder & recover faster Super-soft ColdGear® fabric is breathable & stretches for superior mobility but is still incredibly warm Body-mapped, nearly sew-free construction is super-smooth next to skin & helps eliminate chafing Material wicks sweat & dries really fast Jacquard elastic waistband with raised texture - Style #: 1356623 Inseam: 26.75" No fly Powered by Celliant 60% Nylon/36% Polyester/4% Elastane Imported - Machine wash cold with like colors Do not bleach Tumble dry low Do not iron Do not use softeners Do not dry clean