O'Neill Wetsuits Men's Epic 2mm Short Sleeve Full neoprene 2mm 100% UltraFlex Neoprene with FluidFlex (tm) Firewall Glued and Blindstitched Seam Construction, Strategic Seamless Paddle Zone LSD: Lumbar Seamless Design and Krypto Knee Padz Internal Thermo Chest Panel for increased insulation Double Double Super Seal Neck, Fully Adjustable and Watertight