The Epic 4/3mm Chest Zip Wetsuit has many of the same great features as O’Neill’s high-end wetsuits, including 100% UltraFlex neoprene, a double seal neck closure, LSD (lumbar seamless design) and a re-engineered covert blackout zip. A great year round wetsuit! Product Information: • F.U.Z.E Closure (Chest Zip) • Back Zip • Seamless Paddle Zones • Double Super Seal Neck • External Key Pocket with Loop • 360 Degree Barrier with Drain Holes (F.U.Z.E.) • UltraFlex • FluidFlex Firewall • GBS Seams • Krypto Knee Padz These 4mm/3mm wetsuits are perfect for year-round use. Perfect for all types of water sports such as sea swimming, surfing, kayaking, paddleboarding and much more!