Stay comfortable from the playground to the couch in this Under Armour Boys' Vanish Short Sleeve T-shirt. It is made of 90% polyester and 10% elastane 4-way stretch fabric that is great for active kids, and the T-shirt wicks sweat and dries quickly to help keep you dry and comfortable. Under Armour Boys' Vanish Short Sleeve T-Shirt Black/Black, Medium - Boy's Athletic Tops at Academy Sports