The most sustainable wetsuit we make. Naturally warm and flexible, the Billabong Furnace Natural delivers premium sustainability without sacrifice. On the outside, the Furnace Natural utilizes 100% recycled Superflex jersey infused with CICLO® fibers, reducing plastic microfiber pollution and plastic accumulation in landfills. Continuing to fuse function and sustainability, Yulex® pure stretch eliminates the need for neoprene and brings lightweight flexibility to a natural rubber core. A zipperless entry system reduces weight and waste while providing maximum flexibility. To top it all off, the eco-minded fullsuit is lined at the front and back panels with incredibly lightweight, strong and thermally-retentive Graphene-infused yarns, now infused with 100% recycled fibers, keeping you warmer, faster for longer.