O'Neill Men's Dive Explore 3mm Back Zip Full Wetsuit Neoprene O'Neill available for U.S. shipments only Super-Seal neck and heavy duty zipper | Hidden Key Pocket: Keeps your key safely tucked away and tied to an elastic drawstring for extra security Firewall insulation | Flatloc Stitched: A breathable overlapping flat-stitched seam 3mm Neoprene Firewall Insulating-Fiber Jersey Wicks away moisture and increases warmth