Shoe for Crew Defender Mid CSA - Nano Composite Toe # 72317W BBKDescription and features: You've got a lot of ground to cover, so get a move on with the Defender composite toe work boot. The non metallic Defender Mid NCT is engineered for performance with our slip, oil, clog and abrasion resistant Gladiator Outsole and has a water resistant upper. The ultra strong yet lightweight carbon fiber nano toe provides more toe room than other safety toe boots and meets ASTM F 2413 standards bearing a class 75 rating. Slip