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Sure So-Cal is cool, but have you ever gotten pitted riding a deserted beach break on the Oregon coast in January? The O'Neill 4/3+ Psycho Tech Chest Zip Wetsuit is the cold water suit you need to expand your horizons beyond your usual surf spots. Stitch-less seam technology and TechnoButter 3 neoprene make for unrivaled flexibility, and say goodbye to cold water flushing; F.U.Z.E. chest closure and Z.E.N. back closure systems incorporate anti-flush barriers with drain holes to keep you warmer for longer.
TechnoButter 3 [Arms, Shoulders, Shins, Calves] – O'Neills exclusive, maximum stretch, hydrophobic neoprene with featherlight ENVY foam rubber core. Ultimate warmth and comfort, built to last.
TechnoButter 3 Air-Firewall Smoothskin [Chest & Back] – The most advanced insulative neoprene available with even more stretch than before. Trapped air technology with quick dry and wind proof properties. Psychotically warm.
TechnoButter 3 Firewall [Thighs & Butt] – Light, insulating neoprene foam core with heat retaining thermal interior layer and quick dry properties. Stretchier than ever before.
F.U.Z.E. Chest Zip Closure – O’Neill’s exclusive F.U.Z.E. (Front Upper Zip Entry) system offers a fresh alternative. Using the same free floating zipper technology as the patented Z.E.N. ZIP closure. The F.U.Z.E. closure keeps you dry and allows unrestricted flexibility.
48° - 54°
Stitch-less Seam Technology – Exterior Fluid Seam Weld and Interior TB3X Tape on either side of a stitch-less seam takes wetsuit construction to the next level for reliable durability and low profile comfort.
Fluid Seam Weld – 8mm silicone-based urethane sealed exterior with a triple glued and blind stitched interior. Watertight, durable, and ultra flexible seam.
Redzone Water Resistant Zipper – Urethane coated offset zipper teeth interlock to stop leaks and keep water from entering the suit.
Krypto Knee Padz
360° Barrier with Drain Holes
Super Seal Low Profile Cuffs
Wind-Proof Smoothskin
Plasma Wrist and Ankle Seals
Aqua Alpha Solvent Free Neoprene Lamination
PLUS (+) = 0.5mm Extra Thickness For Even More Warmth
Always rinse thoroughly inside and out with fresh water after every use. Hang to dry.
TechnoButter 3 – O'Neill's exclusive, maximum stretch, hydrophobic neoprene features 3 layers of material. The maximum stretch hydrophobic jersey exterior stays flexible and dry by shedding water for the lifetime of the product. An Envy foam rubber core features featherlight warmth through the use of a microscopic air-cell rubber formula that increases the insulation factor by decreasing mass. Finally, a pre-stretched interior jersey retains its form for maximum flexibility and snaps back for ultimate warmth and comfort. Built to last.
Fluid Seam Weld – A revolutionary seam construction that utilizes a non-chafing high-grade silicone-based urethane applied in liquid form to the outside of a glued and blindstitched seam completely blocking out water without restricting flexibility.
Fully Taped Seams – The lightest, stretchiest neoprene seam tape ever. Applied 0.5mm split-neoprene to triple-glued seams with water-based glue to keep you dry and loose.
Deep Split-Toe for Improved Balance
Shin and Arch Strap
Heel Pull
Always rinse thoroughly inside and out with fresh water after every use. Hang to dry.
TechnoButter 3 – O'Neill's exclusive, maximum stretch, hydrophobic neoprene features 3 layers of material. The maximum stretch hydrophobic jersey exterior stays flexible and dry by shedding water for the lifetime of the suit. An Envy foam rubber core features featherlight warmth through the use of a microscopic air-cell rubber formula that increases the insulation factor by decreasing mass. Finally, a pre-stretched interior jersey retains its form for maximum flexibility and snaps back to hug the body for ultimate warmth and comfort. Built to last.
TechnoButter 3 Firewall – The most insulative, lightest neoprene foam core ever, with a heat retaining thermal interior layer and quick dry properties.
TechnoButter Fluid Seam Weld – A revolutionary seam construction that utilizes an 8mm non-chafing high-grade silicone-based urethane applied in liquid form to the outside of a glued and blindstitched seam completely blocking out water without restricting flexibility.