O'Neill's top of the range wetsuit now comes in 4/3+, bringing you 4.5mm and 3.5mm thickness to keep you extra warm in the transition from the summer months to the cold season (or if you're surfing in a warmer place all year round).  Our absolute favourite in the range! If you want the best of the best, this is the one.  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