<ul> <li>Breathable upper with seamless lining construction offers the best of both with a secure and comfortable upper fit. No pealing sockliner!</li> <li>New flexible, abrasion resistant materials in high-wear areas. Highly flexible forefoot and rounded heel engineered to promote nimble advance and retreat.</li> <li>Nike Zoom Air and Poron® foam for added cushioning in high impact areas. Stable base of support in forefoot. Outsole designed to maximize traction on competition surfaces.</li> </ul>