Under Armour Recharge Energy Shirt - Men'sThe Under Armour Recharge Energy Shirt features strategic compression that promotes muscle tissue repair to help get your muscles back to full strength faster. UPF 30+ sun protection, anti-odor technology. Flat lock seams help eliminate chafing and add durability. UA logo below the crewneck. HeatGear® 74% nylon/26% spandex. Imported.