O'Neill Youth Epic 3/2mm Back Zip Fullsuit Wetsuit The Epic has many of the same great features as our high-end wetsuits, including 100% UltraFlex neoprene, double seal neck closure, LSD (lumbar seamless design) and re-engineered covert blackout zip. Clean graphics and sharp style lines make the Epic the best value in the industry. Back Zip - Easy Entry Strategic Seam Placement Double Super Seal Neck External Key Pocket with Loop Hand-Cuff Stitch Sleeve Anchor Krypto Knee Padz UltraFlex FluidFlex Firewall Glued and Blindstitched Seams