Rocky S2V Predator 400g Insulated Military Boot - RKC145. This Rocky S2V Insulated Composite Toe Predator boot is built to withstand harsh environments. This boot has a breathable waterproof membrane technology that allows you to battle the elements while allowing your feet to breathe, allowing you to perform at your best. 400 grams of 3M Thinsulate Ultra insulation will keep your feet warm. The ASTM F2413 protective toe standard is met by the composite toe. With Roll-Stop Ankle Stability, a Vibram sole with patented high walls, and a polyurethane midsole, the sturdy, triple-stitched military boot withstands everyday wear and tear while reducing ankle injuries .The stretch LYCRA tongue conforms to your foot for a tight fit, while the fiberglass shank adds durability and stability. These boots, made of flash-resistant, water-resistant leather, 1,000-denier Cordura nylon, and PTFE-coated for flame protection, allow you to put your best foot forward. The Rocky Air-Port footbed soothes your feet while allowing air to circulate through perforations. Get the Rocky S2V Insulated Predator if you need a boot to work in cold and damp conditions.