Even more explosive and supportive than before, the Wilson Rush Pro 4.0 is designed to meet the needs of aggressive players. The key additions to this new version include Energy Surge material placed under the forefoot, and to control the explosive movements, Wilson has added a new 4D shock tech chassis. The Endofit upper maintains a high level of support and comfort while providing breathability. The tried and true Duralast rubber compound ensures maximum durability, and the full herringbone pattern is designed to provide high levels of traction on clay courts.