Timberland PRO Men's 99512 Titan Slip-On Composite Toe 100% Leather Rubber sole PowerFit comfort system provides maximum comfort using a combination of ergonomically designed elements such Contoured, open-cell polyurethane footbed provides durable, resilient cushioning while the molded heel cup provides support and control Polyurethane midsole with an exclusive high-rebound heel insert provides durable cushioning and excellent energy return to prevent fatigue Nylon shank provides support Electrical hazard protection to keep you safe from open circuits