The O'Neill Psycho One 5/4mm wetsuit has had a re-design this season with the inclusion of Technobutter Firewall inside the suit. This new material is heat retaining thus keeps you warmer for longer in the water. The Firewall is on the chest, back and legs so in all the key areas to maintain body heat. So it's now far warmer and with the Technobutter 3 neoprene on the arms, shoulders and calves it is also super flexible. The Psycho One 5/4mm wetsuit is perfect for use in the coldest of winter months in the Uk or if you really feel the cold all year round. Another great thing is it can be used for all water sports and because it features Technobutter 3 neoprene it really feels like you are not wearing a wetsuit at all.
This year it also uses Aqua Alpha solvent-free lamination and Eco Carbon Black in the neoprene making it a far more Eco-friendly wetsuit than ever before.
Z.E.N. Zip Closure (Back Zip)
Minimal Seam Design
Anti-Flush Barrier (Z.E.N. Zip)
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
Dope-Dyed Yarn Jersey
ONeill Men's Wetsuit Size Chart
O'Neill product size
How to measure:
Chest: With your arms relaxed by your side, measure around the fullest part of your chest.
Waist: Measure around your natural waistline.
Hips: Measure around the fullest part at the top of your hips.
If your measurements border on the top end of your chosen size, go for the next size up.