The HyperFreak F.U.Z.E. (Chest Zip) is constructed with our exclusive super light Recycled TechnoButter 3 and TB3x neoprene containing 90% or more recycled fibers in the liner fabrics. We added 0.5mm thicker material as a step-up in warmth 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. Closure Minimal Seam Design 360° Barrier with Drain Holes TB3X Fully taped Seams Full Body/Legs: TechnoButter 3 Arms/Shoulders: TechnoButter 3X PLUS (+) = 0.5mm Extra thickness for even more warmth Aqua Alpha Solvent Free Neoprene Lamination | O'Neill Women's Hyperfreak 3/2mm+ Chest Zip Full Wetsuit in Black, Size 4