The mens O'Neill Psycho Tech 6/4+ chest zip with hood will keep you in the water longer than any other wetsuit in this winter's O'Neill range. This one is for the cold winter days and despite the incredible warmth it offers, it stays stretchy and flexible thanks to Technobutter 3 neoprene.   Key Features: F.U.Z.E Closure (chest zip) Redzone Water Resistant Zipper 360 degrees Barrier With Drainholes Construction: Fluid Seam Weld Stitch-less Seam Technology Fully Taped TB3X Seams Arms/Shoulders/Shins/Calf: Technobutter 3 Chest/Back: Technobutter 3 Air-Firewall Smoothskin Thigh/Butt: Technobutter 3 Firewall