UA FLOW CUSHIONING: Unmatched comfort, ground contact & traction—no squeaks. BREATHABLE UPPER: Durable canvas material with Bruce Lee-inspired print. ISO-CHILL PADDED INTERIOR: Heel to toe interior foam padding with cool-to-the-touch Iso-Chill technology. MACHINE WASHABLE: We made it easy—put them in the wash to keep them fresh & clean. CONVERTIBLE HEEL: Go from train mode to recover mode. Colour: black