Toe Guard Nitro safety boot is proven to withstand the toughest abuse and the harshest environments. Equipped with an oil and heat resistant anti-slip rubber outsole, TPU scuff cap for extra durability, fiberglass toe cap and soft nail protection. Upper: Full-grain leather Outsole: Oil and heat resistant anti-slip rubber Midsole: PU Footbed: Moisture wicking and breathable PU Fit: Wide Sizes: 36-48 Safety Standard: EN ISO 20345:2011 S3, SRC, HRO Protection: Fiberglass toe cap and soft nail protection