Premium Leather Upper. PRO-DRI Waterproof system, with membrane. Padded collar & Leather tongue offers extra comfort. Maximum Defense metal free System. Off centre last mimics the natural shape and rotation of your foot. Fully aerospace lining wicks away moisture, fast drying & extremely comfortable. Lace-to toe design for better fit. Rocker toe offers toe spring & requires less energy to walk. 200g Thinsulate insulation. Cambrella lining, engineered to add comfort, durabililty & moisture management. Helcor high abrasion toe & heel guard for added wear protection. WELTREK II Goodyear welt construction. Outsole: aggressive lug, oil resistant rubber with lightweight PU midsole.