Under Armour Mens RUSH Top. Under Armour Rush Short Sleeve T Shirt MensThis Under Armour Rush Short Sleeve T Shirt is crafted with short sleeves and a crew neck for a classic look. It features flat lock seams to prevent chafing and is a lightweight construction. This t shirt is designed with a signature logo and is complete with Under Armour branding.> T shirt> Short sleeves> Crew neck> Flat lock seams> Lightweight> Signature logo> Under Armour branding> 100% polyester> Machine washable