Unmatched Versatility - The Viper is the only shoe of its kind. Its twin sole design is specifically suited for marching band, guard and percussion performances. Whether you're on asphalt, grass or the gym floor, the Viper provides exceptional support and flexibility. • PU upper with padded tongue and Achilles-supporting ankle collar. • Twin sole design provides maximum arch flexibility. • Non-marking sole with anti-scuff toe protector. • Fully lined upper with moisture-wicking material. • Thick, cushioned insole and heel cup.