These women's K-Swiss Defier RS Tennis Shoes have been specially designed to withstand extreme wear on the inside and outsole of the shoe, so you're ready for anything on the court. Enhanced Aosta 7.0 durable rubber optimises durability offer in high-wear areas, with an EVA midsole, equipped with Shock-Spring technology, for superb underfoot cushioning and exceptional shock absorption. TPU mid-foot shank delivers added support and stability so you can focus on that match point.. Material: Leather Upper/Synthetic Sole