O'Neill Men's Hyperfreak 4/3+ Chest Zip Fullsuit Wetsuit Features:The HyperFreak F.U.Z.E. (Chest Zip) is constructed with super light TechnoButter 3 and TB3X neoprene. We added 0.5mm thicker material as a step-up from the HyperFreak Comp. The minimal seam design, lightweight, quality construction, and attention to detail make this another team inspired favorite.F.U.Z.E. ClosureMinimal Seam Design360 Degree Barrier with Drain HolesTB3X Fully Taped SeamsGlued and Blind Stitched SeamsFull Body/ Legs: TechnoButter 3Arms/ Shoulders: TechnoButter 3XPlus (+) - 0.5mm Extra thickness for even more warmthAqua Alpha Solvent Free Neoprene laminationItem# 5346