Oneill Hyperfreak 4/3mm Chest ZipProduct Description The HyperFreak F. U. Z. E. (Chest Zip) wetsuit is built with ultra lightweight TechnoButter 3 and TB3X neoprene, delivering exceptional flexibility, comfort, and performance. Designed as a step up from the HyperFreak Comp, this version features an additional 0. 5mm thickness for increased warmth without sacrificing mobility. A minimal seam design reduces restriction and enhances durability, while the F. U. Z. E. (Front Upper Zip