O\'Neill Epic 4/3mm Chest Zip Wetsuit 2021 - Abyss The O\'Neill Epic 4/3mm chest zip wetsuit was new addition to the epic range for winter 2020, using high quality design and construction. The O\'Neill Epic in the 4mm version is the perfect all year round suit for someone that tends to not go in the water in the coldest of UK winter months thus having a super warm suit for the rest of the year. The suit is now 100% UltraFlex neoprene which means you get an amazing fitting suit which in it\'s self will keep you warmer as the better the fit the less water can sit in panels. Along with the fit the super stretch neoprene keeps you very flexible in the water meaning you will not get tired as quick.  To keep you warmer, the suit also features Fluidflex Firewall which is a thermal chest and back panel inside the suit that retains your body heat and then keeps you warm. The smooth skin on the chest and back stops cold winds cooling down the suit again maintaining your body heat. It has to be said this is a great value wetsuit that is very high quality. FEATURES 4/3mm Neoprene Thickness Smoothskin FluidFlex™ Firewall 100% UltraFlex DS Neoprene Krypto Knee Padz Glued and Blindstitched Seams Double Super Seal Neck New Glued-in Covert Zipper Construction New Chest Zip Entry External key pocket with Loop Strategic Seamless Paddle Zones LSD: Lumar Seamless Design