Strength and endurance build with each run. These women's running shoes are designed to help you log more miles in comfort. The shoes' efficient boost™ midsole works with the STRETCHWEB outsole to return energy to every step, helping you run farther with less fatigue. A supportive midfoot complements the snug, sock-like fit of the adidas Primeknit upper to give your feet the support long runs demand. A Continental™ Rubber outsole provides sturdy traction in all conditions, wet or dry.