Work without limits wearing the Avenger Work Boots Blade High CT featuring carbon nanofiber safety toe and slip resistant outsole. Carbon nanofiber composite safety toe meets or exceeds ASTM F2413-18 I/C and EH (Electrical Hazard) safety ratings. Oil, slip-resistant rubber outsole meets or exceeds ASTM F3445-21 standard. Removable, foam insole. Canvas textile upper. Textile lining and EVA midsole. Waterproof membrane construction keeps out the wet elements for a drier and more breathable foot environment. Flex-welt construction for comfortable flexibility in every step. These work boots have no exposed metal and are security friendly. Lenzi puncture-resistant plate guards against sharp objects. Lace-up closure.