Aqua Lung SolAfx 8/7mm Men's Scuba Wetsuit X-tend cuff technology provides a finished look without sacrificing stretch by removing restrictive edge tape. Environmental friendly features: neoprene free of P.A.H. (Polycyclic Aromatic Hydrocarbons), made from a non-petroleum based material, and has REACH (European Union standards) approved thread. 8mm AquaFlex neoprene used in the torso with 7mm AquaFlex neoprene on the legs and arms for added flexibility. Liquid Fusion Seam Technology with reinforcing patches on the inside at seam junctions enhances the durability and integrity of the seams. The suit has an across-the-chest Plasmaloc zipper with tighter tolerances and a unique integrated tooth design that makes the zipper more water resistant than most other brands. This minimizes water exchange and allows you to remain warm throughout your dive.