The Wilson Rush Pro 4.0 boosts dynamic movement with innovations in the midsole and outsole. An evolution of the Rush Pro 3.5 chassis construction, 4D Support Chassis 2.0 splits the chassis into two pieces for support and forward propulsion. In the forefoot, Energy Cell features a lightweight EVA foam that provides energy return for more explosiveness. Layer in a sleek silhouette, and the Wilson Rush Pro 4.0 takes your game and style to new heights! 4D Support Chassis 2.0 extends under the foot to provide enhanced support and forward propulsion. Lateral piece runs from heel to toes for ultimate stability and control throughout dynamic movement. Sensifeel 2.0 Minimally layered upper with an engineered mesh provides enhanced breathability, feel, comfort, and a homogeneous fit. Asymmetrical and elongated medial side TPU heel counter designed specifically for women provides higher stability, arch support and control. Reduced rubber thickness on outsole facilitates propulsion. Lower EVA density improves comfort and agility. Endofit inner sock construction administers enhanced comfort, stability and an intuitive fit. Medial Rubber Drag Pad overlay in the medial area supplies additional durability and protection when dragging the foot. OrthoLite EVA Molded foam offers maximum cushioning and impressive longevity. DF2 Heel-toe drop (9 mm) provides best compromise between comfort and performance. Duralast High-density, consummately durable rubber compound provides abrasion resistance and maximum traction on all surfaces. R-DST+ Midsole foam offers the best combination of cushioning and rebound for dynamic performance. Energy Cell Lightweight EVA foam in forefoot of midsole lends softer feel for optimal transfer of body weight through impact, creating more explosive acceleration. Designed for best performance on all court surfaces.