The versatile and casual Avenger Work Boots Blade High will make your feet comfortable and at ease during your work hours.Carbon composite safety toe meets or exceeds ASTM F2413-11 I/75, C/75 and EH (Electrical Hazard) safety standards.Canvas upper.Textile lining.Removable, foam footbed for added comfort.Description. Carbon composite safety toe meets or exceeds ASTM F2413-11 I/75, C/75 and EH (Electrical Hazard) safety standards. Canvas textile upper. Textile lining. Removable, foam footbed for added comfort. 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. Slip-resistant rubber outsole meets Mark II Oily/Wet CoF: .54 standard. Lace-up closure.