Fit: Length fit is true to size. Width fit is medium. Arch support is medium height. This shoe requires a short break-in period. Upper: Synthetic leather upper for light weight and durability. Extensive use of mesh in the vamp, tongue, forefoot and heel provides ventilation and lightweight performance. Beefed up toe bumper provides excellent protection against toe-drag. Lining: Textile lining for comfort and blister protection. Midsole: adi. PRENE+ insert for forefoot propulsion and efficiency. Extended TORSION SYSTEM for midfoot and forefoot integrity. Feathered construction allowing for ultimate performance on aggressive lateral cuts. Outsole: adi. WEAR 6 for the best durability in high-wear areas. 6-month outsole guarantee Weight: 17.1 ounces (size 10.5)