Under Armour Nitro Diablo RM - Boys' Grade School The Under Armour Nitro Diablo screams speed from every angle. No matter how fast you're moving in the synthetic upper, you'll still be comfortable standing on molded 4D Foam™, UA’s proprietary footbed. It forms to your foot, providing optimal comfort while reducing cleat pressure. The rubber molded outsole is designed to be lightweight while providing superior traction on synthetic surfaces. Secondary cleats engage to give the player added dig for sharp cuts and explosive acceleration. Wt. 9.8 oz.