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O'Neill Psycho Freak 4mm Chestzip 2019 Wetsuit

Size: MT
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The Psycho Freak series of wetsuits are the best in the O'Neill lineup at keeping you warm for seemingly endless days on the water with your favorite sports. And being a part of the Psycho range, you know that this suit will surely be loaded with tech to support you, allow you to move freely and ultimately keep you comfortable enough to allow you to perform at the top of your game.


  • Arms/Shoulders/Shins/Calf: TechnoButter 3
    • The TechnoButter 3 material is an O’Neill exclusive material that is super stretchy, featherlight neoprene that has been merged with the Envy foam rubber core. The ultimate material for warmth and all-day comfort.
  • Chest/Back: TechnoButter Air Firewall Smoothskin
    • The most advanced insulative neoprene type available in the O’Neill range. By utilizing trapped air, they have managed to make this firewall material truly bring the heat to those in need. This technology provides you with quick-drying properties and wind resistance.
  • Lower Body/Upper back: TechnoButter 3 Firewall
    • Three-layered firewall construction where the outer is a TB3 exterior jersey material that is built of maximum stretch hydrophobic yarns with sublime water shedding capabilities. Beneath that is the featherlight Envy Foam rubber core that packs a whole lot of insulating punch, with very little material. And ultimately at the core of this firewall is the TB Firewall that is a heat retaining layer with internal water shedding abilities.
  • Super Seam Weld
    • A Stitchless, 4mm silicone-based urethane seal that is applied internally and externally to a triple-glued seam. This technique is lightweight, non-chafing, waterproof and very flexible.
  • F.U.Z.E. Closure
    • F.U.Z.E. stands for Front Upper Zip Entry. This is similar to the Z.E.N. system in construction only mounted on the chest area. This system will have you safe and dry while feeling loose.
  • Super Seal Cuffs
    • This technology provides you with the highest level of waterproofing and durability in the O'Neill range. It is designed with a very low profile at the cuff ending which makes the seal tight and snug.
Wakeboarding, Kitesurfing, Surfing, Windsurfing, SUP (Stand Up Paddling)
Zip Type:
Chest Zip
Water Temperature:
41°F - 50°F, 50°F - 57.2°F
Wetsuit Type: