Under Armour Rush Energy Short Sleeved T Shirt In Black. This t shirt is cut in a loose fit for ultimate comfort. A ribbed crew neckline with short sleeves. The signature Under Armour logo is situated on the left of the chest in white with an additional Under Armour logo on the reverse of the neck also in white. This t shirt is constructed from a Mineral infused fabric which takes the energy you give off when you work and reflects it back into your muscles improving blood flow and helping them work harder. A hexagon is situated on each shoulder in white. Side vents at the hem. 90% Polyester And 10% Elastane.