The LaCrosse Men's Premium 16" Steel-Toe Knee Boots are perfect for muddy, grimy jobsites. Their ozone- and abrasion-resistant ZXT rubber offers 100% waterproof protection. ZXT rubber is a premium rubber compound with a high-tensile strength for greater tear resistance and durability. The Trac-Lite slip-resistant outsoles provide superior traction. The steel safety toes meet or exceed ASTM F2413-05 M I/75 C/75 EH. Electrical hazard (EH) footwear is manufactured with nonconductive electrical shock-resistant soles and heels. Contoured heels prevent slipping and provide a more secure fit. The protective rubber toecaps and shovel arch guards further enhance durability. Removable EVA insoles add cushioning for all-day comfort. Steel shanks for support. Imported.