On's first-ever tennis competition shoe, co-created with Roger Federer. Performance experience meets performance tech. Materials & Transparency Materials Recycled Content: – Total Recycled Content: about 5-10% – 100% recycled polyester upper Supplier Transparency Dean Shoes, Vietnam Key features - Weight: 366g - 100% carbon fiber Speedboard® for maximum energy return - Engineered mesh serves up breathability and support - Tread pattern for grip and glide - Lateral + medial support for dynamic lateral movement - Padded heel provides comfortable support - Midfoot cage locks feet securely in place