ZXT tear resistant rubber for added protection Slip-resistant durable outsole Non-Metallic Composite Safety Toe is lightweight yet rugged Safety Rating: ASTM F2413-11 M I/75 C/75 EH Quick drying jersey knit comfort liner is moisture wicking Removable polyurethane footbed 5mm neoprene insulation Fiberglass shank Neoprene gusset accommodates different calf sizes & makes it easy to slide boot on & offVendor Style Number: 248311