adidas Men's Adizero Ubersonic 2 Clay Tennis Shoe 100% Textile and Synthetic Imported Rubber sole Shaft measures approximately low-top from arch Breathable and flexible adidas Prime knit upper for an enhanced fit Abrasion-resistant ADITUFF wraps around the toe and medial forefoot to help protect against foot drag that occurs during serves, volleys and extreme lateral movements Webbing in midfoot for extra stability during fast cutting movements; TORSION SYSTEM for midfoot integrity Full-length ADIPRENE+ midsole for long-term, lightweight cushioning and extra resilience The Sprint frame construction uses geometrical research and a new stud configuration to offer the perfect balance between light weight and stability