The HyperFreak F.U.Z.E. (Chest Zip) is constructed with our exclusive super light Recycled TechnoButter 3 and TB3X neoprene containing 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 (Chest Zip) 360 degree Anti-Flush Barrier with Drainholes (F.U.Z.E.) Minimal Seam Design Recycled Oyster Shells and Eco Carbon Black Infused Neoprene Recycled Dope-Dyed Yarn Liners Aqua Alpha Solvent Free Neoprene Lamination Key Pocket with Loop Recycled TBX Fully Taped Glued and Blindstitched Seams Full Body, Legs: Recycled TechnoButter 3 Arms, Shoulders: Recycled TechnoButter 3X PLUS (+) = 0.5mm Extra thickness for even more warmth | O'Neill Men's Hyperfreak 4/3mm+ Chest Zip Full Wetsuit W/ Hood in Blk/Ranger, Size Small