Worn about 6-8 times for indoor tennis. Scuffs, etc but lots of life left. Size 8. On's first-ever tennis competition shoe, co-created with Roger Federer. Performance experience meets performance tech. Key features Weight: 333g 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