Meet Seattle Sports' new FrostPak Arctic Double Walls, which combine heavy-duty construction and thermal insulation at a great price for a long-lasting, super thermal efficient soft cooler that won't break the bank! All sizes are 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! These 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.