The Under Armour Boys' Branded UA Tee will keep your child cool and dry on warmer days outdoors. This lightweight HeatGear t-shirt boasts 100% polyester UA Tech fabric for a more natural feel, long-wearing durability, and unrivaled performance. Under Armour's Signature Moisture Transport System wicks sweat away from the body for even greater comfort. Smooth flatlock seams allow for chafe-free motion. Imported.