MuckBoots Adult Arctic Sport Boot The Arctic SportTM is warm enough for the coldest outdoor days, durable enough for the most rugged conditions. Breathable AirmeshTM lining Stretch-fit top line binding snugs your calf to keep warmth in and cold out Molded, durable, rubber outsole provides maximum protection and stability Added toe protection with a wrap-up bumper 2mm thermal foam underlay added to the instep area for additional warmth EVA molded midsole with contoured footbed Reinforced toe Double reinforcements on the instep, heel and Achilles area CR flex-foam bootie (5mm) with four-way stretch nylon, snag-resistant cover is 100% waterproof, lightweight, flexible, buoyant, and will form to virtually any calf girth Comfort range of 60Â° F to -40Â° F Available in Black/Black Men's sizes 7-13 Women's sizes 8-14 (Unisex) Muck Boot Frequently Asked Questions Here (Opens in new window) Make the Arcticâ€”or Arctic-like conditionsâ€” your playground in these sporty boots from Muck Boots. Lightweight, well insulated, and sure to keep your feet warm and comfy as the Mercury dips, this sturdy boot offers 100% waterproof protection, keeping snow, ice, and slush at bay with ease. Its upper shaft stretches for a close under- or over-the-pants fit. A breathable lining wicks moisture away for a comfy, dry feel, while the molded rubber outsole keeps you steady on your feet. Lowest Price - Too Low to Display Click to See!