Dryshod Arctic Storm boots provide layers of warmth for your feet in a slim profile. They hug your feet and keep you warm and comfortable in extreme winter conditions. DS1 molded outsole – outer and inner grip 6 layers of protection plus EVA cold-blocking midsole = 7 layers 5.5 mm bootie 2.5 mm DENSOPRENE XD foam (extreme density) for extra protection 2 mm air mesh 2 mm warm fleece lining = 11 mm of insulating warmth and protection! Removable molded EVA sockliner Double Achilles heel and instep reinforcement for comfort and protection Nylon shank Check Out Our Blog: Dryshod Arctic Storm Women’s Winter Boot Review Dryshod Women's Arctic Storm Winter Boot - Black/Blue