TriBase Under Armour Black Men's Sneakers. Under Armour Men's Training Shoes. The shoes are designed to withstand the stress of intense training while being light and wearable. The specially designed sole, which maximizes contact with the surface, allows excellent flexibility and natural movement of the foot. External reinforcement around the heel offers increased stability. Micro G's floor-to-® foam insole offers ideal suspension. The rubber sole also surrounds the side panels, reducing the possibility of aeration. The insert is not removable.Material:outer part - 82% textiles, 18% syntheticsoutsole - 100% rubber