Design: Nylon mesh underlay increases breathability and ensures lightness Hotmelt upper reinforcements to ensure support and long-lasting durability Heel control ensures heel stability and support In-Shoe Comfort: EVA midsole ensures cushioning and comfort ENERTURN(R) EVA to provide extra cushioning, reactivity, and comfort Insert with different EVA density provides heel control and torsion elasticity Durability & Traction: All-round tread for all types of courts PUNTOFLEX outsole construction designed to allow the foot to flex correctly and give an excellent elastic return