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O'NEILL Psycho Tech 4/3+Mm Chest Zip Full Wetsuit

  • Based on 13 reviews
Condition: New
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$489.95 Why this price?

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Dec 26
Order within 1 hour and 1 minute
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Color: BLACK/BLACK


Size: Small


Features

  • Double superseal neck: A toasty warm two layer design featuring a 360 smooth skin interior lining, wide adjustablility, and a secure lock down. Fully adjustable and watertight.
  • E Closure Sytem.
  • ONeills PsychoTech combines the exclusive TechnoButter 3 neoprene with TechnoButter 3 Air Firewall insulation, Stitchless Seam technology with exterior Single Fluid Seam Weld, internal TB3X Tape and a F.
  • Strategic seamless paddle zones: An ergonomic, seamless under sleeve panel that allows for unrestricted motion and eliminates rashing. Flexible and unique design which utilizes minimal seam placement for comfort.
  • Technobutter 3 neoprene: O'Neill's exclusive new pre-stretched neoprene with featherlight, ENVY foam rubber core. Ultimate, flexibility, warmth and comfort. Built to last.

Item Package Dimensions L x W x H: ‎23 x 19.9 x 2.1 inches


Package Weight: ‎1.63 Kilograms


Item Dimensions LxWxH: ‎23 x 16 x 5 inches


Brand Name: ‎O'NEILL


Color: ‎BLACK/BLACK


Material: ‎Neoprene


Manufacturer: ‎ONeill


Part Number: ‎5337-A00-S


Size: ‎Small


Date First Available: September 19, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • No Hood; size runs small
Color: BLACK/BLACK Size: X-Large
Cold water open water swimmer Suit is very flexible. Seam work appears to be high quality
Reviewed in the United States 🇺🇸 on October 13, 2021 by ray whitehouse

  • A fantastic wetsuit
Color: BLACK/BLACK Size: M-TALL
First of all I received the wetsuit immediately so I am pleased with that since I was very excited to try it out. I have been using O'Neill Psycho One wetsuits for at least 10 years and love them because of their techno butter wetsuit material that is so light, comfortable and warm. This time I was convinced by knowledgable sales people that the Psycho Tech wetsuit is one step better because it also has an air firewall and instead of being 4/3 it is 4/3 plus so it is a tiny bit thicker and because it has the taped seams on the inside in addition to the outside. I also learned that this is the newest techno butter wetsuit material that is better than before. The day I got the wetsuit I tried it here in the Santa Cruz coast which is cold water. I was sooooooooo warm and comfortable. I could have stayed in all day long if I wanted. And very comfortable. I can't imagine there is a better wetsuit available anywhere. This wetsuit is perfect. One other thing I would like to add. I have always owned rear zip wetsuits because once I tried a front zip by another company and it was so hard to get into that I was completely turned off by the idea. Again, knowledgable salespeople and surfers told me that they all use the front zip so I tried it out. Because of how stretchy the techno butter material is I found it easy enough to get into this wetsuit. Not quite as easy as the rear zip but no big deal and once in it is better with less leakage and very comfortable. I am glad I switched to the front zip... even though some people told me that young surfers use the front zip but older people use the rear zip because it is easier to get into. Well I am 65 years young and it was no problem getting into and it is little bit better than the rear zip even though both are great. As you can tell.... I love my new wetsuit and will get lots of great use out of it here in lovely Santa Cruz, California ... show more
Reviewed in the United States 🇺🇸 on April 19, 2021 by Michael Santa Cruz

  • Comfortable and warm, but poor durability and worthless warranty
Color: BLACK/BLACK Size: Medium
This is a great wetsuit. Fits perfect! Very warm. Easy to get in and out of ( for a chest zip) I am 63. Surf regularly through the Delaware winter. Most recent water temps 40-45. I have been wearing this suit with a oniel hooded vest base layer. Booties and gloves etc. Body stays warm for 1-2 hours. Pretty flexible dispute 4/3 plus. Too early to comment on durability but so far satisfied even though it was expensive Update. Started using the suit in late fall. Unfortunately, a panel on the shoulder has separated from the seam.. contacted oniel, regarding warranty and is WORTHLESS!!. I must send suit with return postage and they will look at it and decide if it is covered.. I expect a little better service for a $400 wetsuit. ... show more
Reviewed in the United States 🇺🇸 on March 28, 2022 by Dancoar

  • Good fit, stylish, warm!
Color: BLACK/BLACK Size: Medium
I'm a windsurfer. In the water, then out and in the wind. The style of this wet suit is awesome. Love the easy remove neck cuff that you get with the chest zip. Goes on well with the special inner material. I live in a fairly cold region and extending the windsurf season is important. Being in 42 - 55 F water is just part of the game. With this suit on, it feels like a warm pond late summer. Awesome. Well worth the price. ... show more
Reviewed in the United States 🇺🇸 on June 2, 2020 by Mike Mark

  • Noticed hole in sleeve after 3rd use but is outside return window
Color: BLACK/BLACK Size: Large
Reviewed in the United States 🇺🇸 on October 5, 2021 by WA

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