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  • psychotech+ front psychotech+ front
  • Psychotech+ - Back Psychotech+ - Back

O'Neill Psycho Tech 5/4+mm Mens Back Zip Wetsuit 2020 in Black

Quick Overview

Brand New For 2020 - The Back Zip O'Neill Psycho Tech +

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Brand new for the 2020/2021 winter season is the O'Neill Psycho Tech 5/4+mm back zip wetsuit. A suit that was once only available in chest entry - this top end, Techno Butter 3 wetsuit now allows for simplified entry through the use of a back zip system whilst retaining many of the benefits of a chest entry wetsuit using O'Neill's exclusive Z.E.N Zip Closure. The Z.E.N Zip offers a anti flush barrier combined with the RedZone water resistant zip to help keep you warmer for longer.

The Psycho Tech + benefits from an additional 0.5mm of neoprene in both the core and arms making this suit a 5.5mm/4.5mm without loosing flexibility through O'Neill's signature Techno Butter 3 Neoprene, their lightest and most flexible neoprene ever made.

The suit further benefits this year from being internally taped with TB3X neoprene as well as an external fluid seam weld to help keep the wetsuit water tight for longer.

This wetsuit is all about warmth and allowing you to stay in the water for longer without hindering performance.


- Patented Z.E.N. Zip Closure

- Redzone Water Resistant Zip (Preventing Water Entry)

- 360 Degree Barrier With Drain Holes ( Keeping The Cold Water Out Of The Wetsuit)

- Fluid Seam Weld Stitchless Seam Technology

- Fully Taped TB3X Seams

- Arms / Shoulders / Shins / Calf Technobutter 3 Neoprene (Incredible Flexibility)

- Chest / Back Technobutter 3 Air-Firewall Smoothskin

- Thigh / Butt Technobutter 3 Firewall

Additional Information

Brand O'Neill Wetsuits
MPN Number 5361-a00
IBAN Number: 0000000317740
Colour Black
Style Back Zip
Product Thickness 5.5mm
Gender Male
Age Group adult
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