Stretchier than ever, the O'Neill Psycho One Back Zip Wetsuit is royalty in the world of highly flexible rear entry wetsuits. Utilizing the complete coverage of the Z.E.N. closure system and its anti-flush barrier, the Psycho One remains incredibly simple to climb in and out of. The hydrophobic, and soft to the touch, TB3 (TechnoButter 3) Neoprene incorporates O'Neill's exclusive feather-lite ENVY foam core, creating one of the lightest and most flexible wetsuit components to date.

Dropping the extra panels and shedding all but the best features, the Psycho One boasts insane pliability with the TB3 Neoprene and highly flexible seams. An ultra-flexible and super durable Fluid Seam Weld locks the outside of all the seams from cold leaks and lengthens the overall life of the suit. With a rash resistant collar and interior water barrier the Psycho One offers comfort, warmth, and durability in a super lightweight, quick-drying suit. Stay warm without feeling smothered in layers of rubber, pull on the Psycho One and step into the water in your second skin.