O'Neill Psycho One 5/4mm Chest Zip Winter Wetsuit - Black/Black

The Unparalleled Premium in Lightweight Flexibility and Durability. Now featuring TB Firewall with heat retaining thermal interior layer in the chest, back, and legs. Team inspired minimal seam design.

• F.U.Z.E. Closure (Chest Zip)
• Minimal Seam Design
• 360° Barrier With Drainholes (F.U.Z.E.)
• Double Seal Collar
  
• Fluid Seam Weld
• Arms/ Shoulders/Calf: TechnoButter 3
• Chest / Back/Shins/Butt : TechnoButter 3 Firewall
• Aqua Alpha Solvent Free Neoprene Lamination
• Eco Carbon Black in Neoprene
• Limestone Neoprene
• Dope-Dyed Yarn Jersey