Designed to lock in while you're in motion for a distraction-free workout. Our original HeatGear fabric is super-light, breathable & dries fast. Material wicks sweat & dries really fast. Features 4-way stretch material that moves better in every direction. Ergonomic flatlock seams deliver a comfortable, chafe-free fit. High-rise UA No-Slip Waistband provides optimal coverage & support that stays put with every move. Includes a side drop-in pocket. Fabric Composition: Polyester.