The cushioning comfort technology in the heel is designed to provide lightweight shock absorption so comfortable right out of the box you'll want to throw out your commuter shoes. Additional comfort features include: A padded tongue and collar to prevent blisters, an EVA footbed that conforms to your foot for a personalized fit, and a Dual Density polyurethane outsole which absorbs shock and reduces foot fatigue. Low break-in time. Great for flat feet. Heel Height: 3/4"