What's it do? The most versatile shoes we've ever made with a supersized midsole for mega energy. They feel great, cushion better, fit perfectly, handle your toughest training, AND have a heel that converts easily from slip mode to speed mode. SUPERSIZED UA FLOW CUSHIONING: Unmatched comfort, ground contact & traction—no squeaks BREATHABLE UPPER: Durable ripstop material with engineered venting BOA FIT SYSTEM: A personalized fit, one click at a time, with a 12-point lockdown system 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 run mode to recover mode *Laundry bag not included UNISEX. Mens size is 4.5