The Under Armour UA Echo-BLK Unisex Running Shoes feature a multi-layered, breathable monofilament mesh upper. An asymmetric tongue and lacing system allow for quick adjustment. A rubber toe cap adds durability. UA HOVR cushioning reduces impact and returns energy. A convertible UA SlipSpeed ​​heel allows for transition from training to recovery mode. A rubber outsole provides traction on any surface.