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O'Neill Psycho One 4/3mm Men's Chest Zip L/S Full Wetsuit

Midnight Oil/Jet Camo
Black Acidwash
The O'Neill Psycho One 4/3mm Men's Chest Zip L/S Full Wetsuit is the ultimate in lightweight stretch and warmth. Made with the all new Technobutter 3 neoprene technology you can expect unparalleled performance in the coldest of conditions. Designed with minimal seams, 360 barrier with drain holes, and wrist/ankle seals means less flushing for longer warmer sessions. Get this and all you winter shredding gear at The


  • F.U.Z.E. Closure (Front Upper Zip Entry)
  • 360° Barrier With drain holes (F.U.Z.E.)
  • Minimal Seam Design
  • Seamless Paddle Zones
  • Plasma Wrist and Ankle Seals
  • Krypto Knee Padz
  • Fluid Seam Weld
  • Full Body: TechnoButter 3