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O'Neill 4/3 Psycho Tech F.U.Z.E. Wetsuit

sku# 144846
O'Neill - 4/3 Psycho Tech F.U.Z.E. Wetsuit
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Product Info

You're not crazy thinking the O'Neill 4/3 Psycho Tech F.U.Z.E. Wetsuit is one of the best premium wetsuits around. Who wouldn't want TechnoButter neoprene that is easier to paddle in than ever? Maybe its the full, 360° firewall insulation and glued+blind stitched seams to keep the water out and your heat in. A F.U.Z.E chest zip closure and it's patented design makes gearing up a breeze so you can get out and get in the lineup while it's still firing. A top tier fit that's sealed off like the national treasury, the O'Neill 4/3 Psycho Tech F.U.Z.E. Wetsuit is what you want to be stepping into on that next trip to the coast.

Product Details


TechnoButter 3O'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.

TB-Air FirewallTechnoButter Air technology is a complex 3D structure of neoprene and trapped air. Think double pane windows, more air = more warmth. The TechnoButter Firewall inner lining is 20% lighter and has 30% less water absorption resulting in the warmest, lightest and fastest drying material available.


F.U.Z.E. Closure SystemFeatures a 360° Inner Barrier to prevent flushing in all directions, a Floating Zipper Panel similar to O'Neill's patented Z. E. N. Zip closure to keep you dry and flexible, and three strategically-placed drain holes and an adjustable cinch cord.

Red Zone Water Resistant ZipperUrethane coated, offset zipper teeth interlock to stop leaks and keep water from entering the suit.


Glued and Blindstitched Seam Construction (GBS)The neoprene is fully sealed with glue first, then blindstitched over the top. Blindstitching reduces seam bulk, adds durability but does not go all the way through the neoprene. In exchange, you have a durable, warm product that prevents flushing.

Single Fluid Seam WeldA 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.

F.U.Z.E 360° Inner Barrier with Drain HolesPrevents flushing in all directions. Water entering the suit stays shielded from the body.

Double Seal Collar

Fully Taped SeamsSoft and durable neoprene seam tape. 0.5mm split-neoprene applied to triple-glued seams to seal out water keeping you dry and loose.

Ultra-Violet Protection50+ UPF Maximum Protection


Always rinse thoroughly inside and out with fresh water after every use. Hang to dry.


  • Wetsuit Thickness: 4/3 mm
  • Wetsuit Fit: Chest Zip
  • Material: Neoprene
  • Seam Sealing: Fully Taped, Glued and Blindstitched Seams, Glued Seams
  • Manufacturer Item Number: 5027
  • Warranty: 1 Year

Other Notes

O'Neill products can only be shipped within the United States



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