The Psychofreak 4.5/3.5mm wetsuit from O'Neill.

O'Neill's new XDS-Air Firewall is more insulating and water wicking than ever. O'Neill has put this state-of-the-art insulation in the chest, back and in the Lower Core panels. UltraFlex XDS arms, shoulders, and lower leg add flex and durability to the right places. Psychofreak takes you beyond warm, beyond flexible and beyond your imagination.

Details:

Chest and back: SL/Smooth Skin

UltraFlex XDS-Air Firewall

Front thigh and hips: UltraFlex XDS Air Firewall

Arm and lower leg: UltraFlex XDS

Knee: Krypto

Neck facing: Glideskin

Double fluid seam weld

Patented Z.E.N. zip closure system with pullover

Barrier-2 / double superseal neck / drainhole

Plasma wrist and ankle seals

External key pocket and loop

Updated hand cuffs

Super minimal seam design

Contortionist seamless shoulder

Strategic seamless paddle zones

LSD: Lumbar Seamless Design