Yellowstone M is a S3 WR HI CI M SRC protection class safety boot recognized for your robustness, using a Metatarsal protection. The details make the boots, from the abrasion resistant direct injected double density PU sole to the flexible and light perforation-resistant KEVLAR midsole, a safety boot has never felt so robust. Foot health and comfort are ensured by the Nubuck Leather upper, an Aquatex Waterproof membrane lining, an inside zip for easier fitting, and a Fiberglass toe cap (impact-resistant to 200 J) making it a 100% metal free product. Safety boot available from size 39 to 48, Yellowstone is the ideal boot for construction, brickwork, mining, gardening, road construction, and wet activities.