O'Neill Wetsuits Men's Psycho RG8 4/3 mm F.U.Z.E. Zip Fluid Seam Weld Full Suit nylon 4/3mm 100% UltraFlex RG8 Neoprene Plasma Wrists and Ankle Seals; LSD Lumbar Seamless Design F.U.Z.E. Closure System: Front, Upper, Zip, Entry Single Fluid Seam Weld keeps water from entering at all seams critical points Strategic Seamless Paddle Zone