Extra layers of protection provide unsurpassed warmth on the coldest days! Genuine direct-attach Vibram® “Hellcat” ArcticGrip™ outsole with oversized grip pods for extra-steady footing on ice and snow. Super cold-blocking bootie construction comprised of extra Densoprene® insulating foam, laminated with 1.5mm breathable airmesh + non-pilling fleece inner lining. Full-foot 2mm Densoprene® sub-sole for added cold-blocking protection from the ground up.