S. Fellas Evolutionary Work Boots in Poseidon Black Genuine Grip Men's S Fellas Black Poseidon Composite Toe WP Work Boots - 6050 are a slip-resistant and oil-resistant outsole ankle boot. They are constructed of full grain leather and contain no metal. You will stay comfortable all long with the walking on air polyurethane insole with antimicrobial treatment. This boot is EH rated and ASTM F2413-11 rated. Full Grain Leather Upper Composite Safety Toe Waterproof Oil & Slip Resistant Non-Metal Construction Cushioned Polyurethane Midsole Rugged Outdoor Outsole Electrical Hazard Resistant Walking on Air Polyurethane Insole with Antimicrobial Treatment Meets ASTM F 2413-11 M I/75 C/75 Ratings New in box.