The Keen Men's CSA San Jose 6" Waterproof boasts 35% lighter asymmetrical aluminum toes than steel, a KEEN.DRY waterproof, breathable membrane, and an ASTM/CSA-certified midsole plate for underfoot protection. Plus, get extra comfort and durability with the shellback heel support, nylon shank, and EH/ESR electrical hazard protection. Featuring environmentally-preferred leather from an LWG-Certified Tannery and PFC-free water repellent technology, this men's leather shoe is the perfect combination of protection and style.