O'Neill Psycho Tech 5/4+ CZ Wetsuit 2020

Size Guide

The 2020 O'Neill Psycho Tech 5/4mm plus chest zip wetsuit combines their exclusive TechnoButter 3 and added heat-generating TechnoButter Air-Firewall. Packed full with the hi-tech features you need to stay warm and toasty in any condition.

Design details

SKU: 5365



  • F.U.Z.E. Closure (Chest Zip)
  • Redzone Water Resistant Zipper
  • 360° Barrier With Drainholes
  • Double Super Seal Neck


  • Stitch-less Seam Technology
  • Fluid Seam Weld
  • Fully Taped TB3-X Seams
  • Arms/ Shoulders/ Shins/ Calf: Technobutter 3
  • Chest/ Back: Technobutter 3 Air-Firewall Smoothskin
  • Thigh/ Butt: Technobutter 3 Firewall