Meet our new FrostPak Arctic Double Walls, that combine heavy duty construction and thermal insulation with a great price for a long lasting, super thermal efficient soft cooler that won't break the bank! All sizes built with double layer insulation, nylon coil zippers & dirt resistant extra coated vinyl bodies. Introducing the Arctic Double Wall Coolers. Dual layer insulation keeps ice for twice as long! Our expedition-proven coolers feature a waterproof liner that prevents ice melt from penetrating insulation and are waterproof up to the zipper. Soft-sided build allows for collapsibility and easy storage when not in use.