Arctic Sport™ Extreme-Conditions Sport Boot Black – ASP-000A The Arctic Sport™ is warm enough for the coldest outdoor days, durable enough for the most rugged conditions. Breathable Airmesh™ lining Stretch-fit topline binding snugs calf to keep warmth in and cold out MS-1 Outsole is rugged, aggressive and durable for 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 with four-way stretch nylon, 100% waterproof, lightweight, flexible and buoyant Comfort range of -40° F to 60° F Men’s sizes 7-15