Under Armour Alter Ego Gameday Armour 5-Pad Top - Men's This top's HeatGear Sonic fabric provides a superior compression fit with a second-skin like feel that keeps your muscles locked down and accelerates recovery time. The pads are waterproof, lightweight, and ultra-durable for long-lasting, quality protection that won't bog you down. Under Armour's moisture transport system wicks sweat away from the body, keeping you cool and ready for action. The padding is welded to eliminate annoying seams and to ensure durability. The Under Armour Men's Alter Ego Gameday Top's anti-odor technology prevents the growth of odor-causing microbes.