O'Neill Wetsuits's Psycho Tech combines our exclusive TechnoButter 3 and added heat-generating TechnoButter Air-Firewall.

The hi-tech features you need to stay warm and toasty in any condition.

Z.E.N. Zip Closure (Back Zip). Redzone Water Resistant Zipper. Anti-Flush Barrier (Z.E.N. Zip).

Super Seal Cuffs. Stitch-less Seam Technology. Fluid Seam Weld.

Arms/ Shoulders/ Shins/ Calf: TechnoButter 3. Chest / Back: TechnoButter 3 Air-Firewall Smoothskin. Thigh/ Butt: TechnoButter 3 Firewall.

PLUS (+) = 0.5mm Extra thickness for even more warmth.