Continuous innovation brings an unparalleled level of heat to the Furnace Wetsuit Boot. The warmest wetsuit accessories in the world, our top-shelf wetsuit bootie is backed by Furnace Graphene. Innovative graphene wrapped yarns combine with carbon fibers for a wetsuit boot that is lighter, stronger and warmer for longer. The pinnacle of wetsuit technology, Furnace Graphene is 50% lighter than traditional hollow fiber liners and the most heat-conductive material on the planet. Graphene lining and a thin-yet-durable sole design combine for a lightweight, ultra-warm boot that offers a close board feel. A newly slimmed-down fit and ultra-thin sole offer up incredible dexterity and a barefoot feel.