Load image into Gallery viewer, O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit
Load image into Gallery viewer, O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit
Load image into Gallery viewer, O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit
Load image into Gallery viewer, O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit

O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit

Regular price $549.95
Sale price $549.95 Regular price
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Blk/Blk
Mniteoil/Graph
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SKU: ONL5506A00S

Product Info

Get psyched in the water with the O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit. The Psycho Tech 5.5/4 hooded wetsuit ultimately focuses on warmth and durability. The sustainable TB4 Firewall technology from O’Neill retains and recirculates heat. O’Neill uses recycled ocean oyster shells and Aqua Alpha Solvent Free Neoprene Lamination to help reduce product emissions. The Psycho Tech is O’Neill’s premier wetsuit and is purchased by enthusiasts for its long lasting high performance technology.


Product Info

Staff Says Cleanline Staff Erik Says:

“The Psycho Tech combines warmth and flexibility to a level that is unmatched. The updated Psycho Tech carries on with this legacy with all-new TechnoButter 4 and TechnoButter 4x for an even stretchier suit with the added strength of graphene to keep you warmer and in the water for longer. O’Neill has figured out the best way to keep the entry of the Psycho Tech comfortable and water-tight. The F.U.Z.E closure system is one of the best-designed entries on the market. The Psycho Tech is a great option for surfers in windy climates as the smooth skin panels on the chest, back, and hood help to cut windchill and keep you toasty warm.”

Get psyched in the water with the O'Neill Psycho Tech 5.5/4+ Hooded Chest Zip Wetsuit. The Psycho Tech 5.5/4 hooded wetsuit ultimately focuses on warmth and durability. The sustainable TB4 Firewall technology from O’Neill retains and recirculates heat. O’Neill uses recycled ocean oyster shells and Aqua Alpha Solvent Free Neoprene Lamination to help reduce product emissions. The Psycho Tech is O’Neill’s premier wetsuit and is purchased by enthusiasts for its long lasting high performance technology.

Product Details

  • Thickness: 5.5/4mm+
  • Chest / Back: TB4 Duraskin Air Firewall
  • Thigh / Butt / Shins / Calf: TB4 Firewall
  • Arms / Shoulders: TechnoButter 4
  • Entry: TechnoButter 4X
  • Entry System: Chest Zip
  • Hood: Attached
  • Model Year: 2023/2024
  • MPN: 5506

Product Features

  • F.U.Z.E. Closure (Chest Zip)
  • 360 degree Barrier With Drainholes and Anti-Flush Barrier (F.U.Z.E.)
  • Super Seal Low Profile Cuffs with Plasma Wrist and Ankle Seals
  • Plasma Wrist and Ankle Seals
  • Redzone Water Resistant Entry System
  • Krypto Knee Padz
  • Recycled Oyster Shells and Eco Carbon Black Infused Neoprene
  • Recycled Dope-Dyed Yarn Jersey
  • Aqua Alpha Solvent Free Neoprene Lamination
  • Key Pocket with Loop
  • Stitchless Exterior Fluid Seam Weld Technology with Interior Recycled TBX Tape
  • PLUS (+) = 0.5mm Extra thickness for even more warmth

Additional Info

O'Neill uses recycled ocean oyster shells in place of calcium carbonate powder which comprises approximately 10% of their neoprene. O’Neill worked with their key manufacturing partner to develop a non-solvent based lamination glue called “aqua-alpha”. Aqua alpha reduces solvent usage by 600 grams per wetsuit compared to traditional laminating glues. Eliminates harmful VOCs and has the same durability as conventional, solvent-based Wetsuit glues. From recycled polybags to 100% recycled paper and soy based inks hang tags. Conserving water, energy and virgin materials. 100% digital catalogs. Dope-dying infusion produces colored yarns without the dyeing process. This saves tremendous amounts of water while reducing energy consumption and water pollution (up to 80%). 26% carbon emission is reduced for every kg of fabric. Every blueprint full suit saves more than 1 lb/0.5 kg of harmful plastic from potentially polluting the world’s living oceans. Carbon black is one of the key ingredients in neoprene. It can now be carbonized from scrap rubber tires using high heat to extract. 72% carbon emission declined. O’Neill’s advanced repair facility prolongs the life cycle of their product, keeping their wetsuit out of the landfill longer.


Product Construction

TB4 AIR FIREWALL
The next great thermal breakthrough was made better with trapped pockets of air. TB4 Air Firewall uses a special lamination process paired with a core of aerated neoprene and a graphene fiber jersey to create the toastiest conditions. Take summer with you.

TB4 FIREWALL
The all new Technobutter 4 Firewall utilizes the recycled graphene fibers at a thicker pile to create a fire hot feedback loop. As the body heat warms the graphene fibers they conduct the heat back into the body.

TECHNOBUTTER 4X
Technobutter 4x goes beyond the gooey stretch, and soft feel of TB3x. Recycled graphene fibers line the jersey allowing for incredible stretch with added strength and warmth retention, all with a new look.

TECHNOBUTTER 4
TB4 builds on the legendary Technobutter 3, the next evolution of the jersey introduces recycled yarns infused with graphene for increased wear strength and heat retention.

F.U.Z.E. ZIP CLOSURE
Front Upper Zip Entry (chest) uses a free floating zipper panel and anti flush barrier with drain holes to keep you dry and feeling loose.

STITCHLESS
Exterior Fluid Seam Weld and Interior TB3X Tape on either side of a stitch-less seam takes wetsuit construction to the next level. The all-new combination of reliable durability and low-profile comfort simply can’t be beat.

”O'Neill

Manufacturer’s Description

O'Neill's Psycho Tech range focuses on ultimate warmth and durability with high-performance recycled materials and water-tight double-sealed stitchless seams. Sustainable TB4 Firewall technology radiates throughout with TB4 Duraskin Air Firewall in the chest and back to shield against the cold while retaining and recirculating your body heat. Designed to keep you in the water longer, toasty, and stoked.

Warranty

This product is backed by a warranty from the manufacturer. Click below for details on the warranty policy for O'Neill products.

Returns

If you are not 100% satisfied with your purchase you may return it for a refund, or exchange within 30 days of receiving your order.

Customer Reviews

Based on 10 reviews
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D
Danny
Outstanding wetsuit, outstanding customer service

Unbelievably warm, and incredibly supple & flexible. Beautifully made and insanely comfortable. Paddles extremely well for a 5.5/4+ wetsuit.
One reviewer complained about the suit being stiff (Richie Cords on Jun 25, 2023). I wonder if my experience might explain the discrepancy. I am just short of 5'9" tall and 150#. I followed O’Neill’s size chart and bought a Medium. It was so tight that I could barely move. There is no way I could surf in a size Medium of this suit, even though all my prior suits were that size. So I called Cleanline and they were super helpful. I returned the Medium and bought a Medium-Tall. (The return process was effortless.) Even though I’m way too short for this size according to O’Neill’s chart, this is definitely the right size for me. So maybe Richie Cords went with O’Neill’s chart and his suit was too small.
This is an amazing cold-weather suit. I was previously loyal to Xcel for their winter suits, but this O’Neill suit (Psycho Tech 5.5/4+) takes the cake. The warmth is amazing, but the suppleness is even more amazing. It paddles so easy!

R
Ryan
Best suit and customer service!

First off it’s a lot to pay for a wetsuit! With that said it’s worth every penny! I Kitesurf in Lake Tahoe and you can kite year round in the lake if there is wind but it’s freezing cold. I saw all my buddies keep going last week and literally went online and ordered this suit that night. Cleanline shipped free and arrived it 2 days. Unreal!! Not cold anymore. This suit is like a warm waterproof sweater. You literally don’t feel any cold all you feel is water splash against it but it’s like a suit of armor. I was out last week, November and it was 36 degrees and it started to snow. Perfectly fine finally! Only thing that was cold was my feet because I did not order booties too, got some booties now and I am set. They are true to size. I am 6’4 and 225 and 2xl Tall fits like a glove, a little tite at first but I have no air pockets so I was toasty warm. Getting out is tricky but so worth it to not have the shivers anymore.

J
J.T.B.

Always a great experience with Cleanline Surfshop

P
Pete’s Point
High End Suit that's Durable

Bought O’Neill for decades. Switched to other major and niche brands. Had good luck with some not so much with others. For a high end suit that’s durable, fits well and does the job go with O’Neill. Cleanline offers excellent costumer service.

R
Richie Cords
Not as good as the previous

After 3 winters surfing in the previous iteration of this wetsuit, I really struggled with the idea of getting the new model when the previous was so perfect. But i did the ballsy act and risked the new one. Bummed that i did. I have worn it. Warmth no problem but too stiff and heavy for me. The previous iteration was like wearing a 3-2. This model, to me, was like wearing an 8mm dive suit. One wear and i hope i can find someone to buy it from me for 30% of what I paid. And i’m going to get one of the last of the old ones before they’re all gone.