Under Armour Men's Alter Ego Camo Captain America T-Shirt X-Large High-Vis Yellow Loose: Fuller cut for complete comfort. Lightweight UA Tech fabric with an ultra-soft, natural feel for unrivaled comfort Signature Moisture Transport System wicks sweat away from the body Anti-odor technology prevents the growth of odor causing microbes Smooth flatlock seams allow chafe-free motion. Polyester.