The Women Nike Shox R4 Shoes 903 Cushioning Mesh Upper white /jade training shoe features a breathable, lightweight mesh upper with synthetic overlays for support. Overlays create a lateral stretch/support zone. Midsole support strap. Six-puck Shox cushioning in the heel. Pebax Shox plate cups the heel for resiliency and durability. Phylon midsole adds lightweight cushioning. Non-marking outsole with multi-directional turf-inspired pattern for training on indoor and outdoor surfaces. Forefoot flex pattern offers flexibility