The O'NEILLMen's HyperFreak 3mm Chest Zip Full WetsuitF.U.Z.E. 3mm is constructed with super light TechnoButter 3 and TechnoButter 3X neoprene. Featuring minimal seam design and unfinished cuffs. The lightweight, quality materials and attention to detail make this another team inspired favorite. F.U.Z.E. (Front Upper Zip Entry) uses the same technology as our patented Z.E.N. Zip entry with drain holes to keep you dry and feeling loose. Technobutter 3, O'Neill's exclusive, improved stretch, hydrophobic neoprene with featherlight ENVY foam rubber core. Ultimate warmth and comfort. Built to last. TechnoButter 3x, ONeills exclusive pre-stretched neoprene with featherlight, ENVY rubber foam core. The lightest, most flexible, softest material ever created. Superior flexibility and fit. GBS Seams, blind stitched and triple glued to create a watertight seam, for increased durability. 360 Barrier with Drain Holes Double Seal Collar Body/Legs: TechnoButter 3 Arms/Shoulders: TechnoButter 3X Krypto Knee Padz