O'Neill Mutant 5/4 Wetsuit with Hood

O'Neill Mutant 5/4 Wetsuit with Hood 4.9 5 8
SKU: ONL4762
Eligible for FREE SHIPPING!

Availability: Out of stock

Regular Price: $389.95




The O'Neill Mutant 5/4 Wetsuit allows you to easily go from a full hooded wetsuit to a regular chest zip suit with just a few zips. When days are cold and gloomy the Mutant keeps you cozy in a cocoon of cushy neoprene. When the water temperatures creep up and the sun comes out, zip, toss the hood, then zip zip and enjoy. Simple, functional and great for year-round surfing.

Flexible and warm, the Mutant features Watertight Stitchless Technology and insulates your core with lightweight, toasty TechnoButter Firewall which absorbs the sunshine and blocks the wind chill. Multifaceted to suit an array of conditions and built with durable, high quality materials, the Mutant Wetsuit is a killer suit that has earned a hefty following of fans for good reason.


  • Thickness: 5/4mm
  • Neoprene: Ultraflex DS Neoprene
  • Seams: Single Fluid Seam Weld
  • Zipper: Chest Zip/Modular Closure
  • Hood: Fully Attachable/Detachable Zip in Hood
  • Model Year: 2017/2018
  • Manufacturers Part Number: 4762

Product Features

  • UltraFlex DS Neoprene
  • TechnoButter Firewall
  • Modular Closure System
  • Dual Cinch System
  • Single Fluid Seam Weld
  • Single Superseal Neck
  • Plasma Wrist and Ankle Seals
  • Krypto Knee Padz
  • External Key Pocket
  • Contortionist Seamless Shoulders
  • LSD (Lumbar Seamless Design)
  • Limited 1-year warranty


O'Neill Mutant 5/4 Wetsuit with Hood 2 in 1 genius Review by KRVR KRVR
This is one of the best suits I’ve ever owned. It is almost too warm compared to my other 4/3’s and the option of adding the hood on those extra cold and windy winter mornings then simply swapping it out for a regular collar in the afternoons once the sun is overhead is pure genius!! The only reason I only give it four stars is that it only comes in solid black; they wasted all of their imagination on function with no thought into style. I know it’s stupid but I get a little uneasy dressed like a seal on those gloomy days this suit really excels in and a little graffic design and color would ease my mind even if it might only be in vain.
(Posted on 2/23/2019) 2019-02-23
O'Neill Mutant 5/4 Wetsuit with Hood Fantastic Wetsuit, fantastic serviceReview by Joe L Joe L
So, I don't write reviews, ever! That being said, these guys warranted a review. First the wetsuit - I've used it a few times now (58-51 deg F), toasty warm. Be warned, it's a pain to get in and out of but I knew that when I bought it. Second and most important - Cleanline Surf Co was great. The Suit arrived on time and in the box was a free T-shirt, some decals, candy, board wax, and a hand written note expressing their gratitude for my business. I appreciate the extra effort and they've earned a loyal customer. Thanks for being awesome!
(Posted on 11/13/2018) 2018-11-13
O'Neill Mutant 5/4 Wetsuit with Hood Toasty!Review by ACE ACE
I ordered this suit online recently at a great sale price from Cleanline (timely delivery) for spring Rhode Island surfing. Along with mutant 6/5/4 split/toe boots and 3mm gloves (both also O'Neill) I have been quite warm and toasty in water temperatures in the mid to high 40s, even with a brisk offshore blowing. In fact the inside of the suit is partially dry at the end of a session. Getting the zipper closed by oneself can be tricky at first, until you figure out how to get it fully seated first. And of course it's harder to be quick and nimble taking off when you are wearing this much rubber, but if you eat it at least you won't freeze!
(Posted on 5/9/2018) 2018-05-09
O'Neill Mutant 5/4 Wetsuit with Hood My sons loves it!!Review by Nate Nate
My son love thes thickness of this wet suithe price was best out there. Cleanline service was excellent, sent a free tshirt and thank you card with some candy. Way to go Cleanline.
(Posted on 1/1/2018) 2018-01-01
O'Neill Mutant 5/4 Wetsuit with Hood Great Suit!Review by Austin Austin
Admittedly I don’t use wetsuits to do sweet things like surf or scuba dive. I run a business installing and removing docks and boat lifts in the spring and fall in Michigan. Needless to say the water is cold that time of year. This will be my second Mutant suit from O’Neill with my first lasting 4 years. I liked it so much I decided to buy the new model and while I won’t be using it until Spring, I know I’ll love it. Great quality and great price.

As for my experience, I was really impressed with the service from Cleanline, especially the extra goodies in my box and the thoughtful thank you card - thanks guys! As a business owner I can appreciate when someone goes the extra mile to earn my business and will definitely consider purchasing from them again.
(Posted on 12/19/2017) 2017-12-19
O'Neill Mutant 5/4 Wetsuit with Hood Beyond HappyReview by K K
I bought this suit from Cleanline this winter (2016). Two parts to my review:
1) Cleanline had fantastic service with answering my questions and also had the best price. After a lot of research, I bought from them and am glad I did.
2) The 5/4 mutant really is incredible. I kept comfortable AND warm for hours in 51-52 degree water, where my old 4/3 had my shivering. The hood worked great and I look forward to a nicer day where I can switch out to the collar.
(Posted on 5/7/2017) 2017-05-07
O'Neill Mutant 5/4 Wetsuit with Hood Awesome!Review by Bob Bob
Great suit! More flexible, warmer and feels lighter than my 4/3 Rip Curl F-Bomb.
(Posted on 2/17/2017) 2017-02-17
O'Neill Mutant 5/4 Wetsuit with Hood Great winter wetsuit Review by CJ CJ
I've been using this suit model for 5 years now and they are great. I was worried about durability when they switched to techno butter for the chest but the suits have held up. And the Mutants are warm too.
(Posted on 12/7/2016) 2016-12-07

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Size Chart

The staff at Cleanline Surf specialize in sizing O'Neill Wetsuits. If you have never tried an O'Neill suit before, we strongly urge you to call us for expert advice on sizing. We do have a size chart available below, but please take it with a grain of salt. For the perfect fit the first time please call and speak with one of our wetsuit experts.

XS5′7″-5′9″125-140 lbs36.5-37.5″28.5-29.5″
S5′8″-5′10″135-155 lbs37.5-39″29.5-31″
ST6′0″-6′2″145-165 lbs37.5-39″29.5-31″
MS5′6.5″-5′8.5″145-165 lbs39-41″31-33″
M5′9″-5′11″155-170 lbs39-41″31-33″
MT6′1″-6′3″160-180 lbs39-41″31-33″
LS5′7.5″-5′905″160-180 lbs41-43.5″33-35″
L5′10″-6′0″170-190 lbs41-43.5″33-35″
LT6′2″-6′4″180-200 lbs41-43.5″33-35″
XLS5′8.5′-5′10.5″180-200 lbs43.5-46″35-37″
XL5′11″-6′1″190-210 lbs43.5-46″35-37″
XLT6′3″-6′5″200-220 lbs43.5-46″35-37″
2XLS5′9.5″-5′11.5″200-220 lbs46-48.5″37-39″
2XL6′0″-6′2″210-230 lbs46-48.5″37-39″
3XL6′0″-6′3″230-250 lbs48.5-51″39-44″
4XL6′1″-6′4″250-270 lbs51-53.5″44-48″

Full O’Neill Wetsuit Sizing Chart



If the product is found to be defective under normal use and proper care, O'Neill will repair or replace the product at our sole discretion. The decision to replace or repair a product is made by the O'Neill Warranty Department after receipt of the defective product. At no time does the O'Neill offer refunds. Defective product should be returned clean and dry, postage prepaid. Please include a note with product description, product defects, requested action, return address (be sure to include postal code, especially for Canadian addresses), daytime phone number with area code, customers name and a copy of the purchase receipt sent to the address below.

Suits without a copy of the purchase receipt will NOT BE COVERED UNDER WARRANTY.


  • Products classified as seconds
  • Fading from sunlight
  • Alterations
  • Materials over 1 year (from date of original purchase), or 90 days for accessories
  • Repairs or alterations done by anyone other than O'Neill or an O'Neill authorized repair facility
  • Warranty request without original receipt


Flat-Stitched Products, Glued and Blindstitched Products, and Fluid Seam Weld Products

  • Limited 1-year warranty (from date of original purchase) on workmanship and materials.

Neoprene Dry Suits

  • Limited 1-year warranty (from date of original purchase) on workman ship and materials (waterproof zipper excluded)


  • Limited 90-day (from date of original purchase) warranty on workmanship and materials


For repairs received from the dealer or end user, O'Neill offers:

  • 10 Business Day Turnaround for warranty Stitched Suits
  • 10 Business Day Turnaround for warranty Glued Suits
  • 20 Business Day Turnaround for warranty Fluid Seam Welded Suits
  • 30 Business Day Turnaround for all Non-Warranty Repairs

Repairs are to be returned clean and dry, postage paid. Please include the name and a daytime phone number with area code, return address, product description, and requested action.

Send Repairs To:

O'Neill U.S. Warranty Repair
1022 Bay Marina Drive, Suite 140B
National City, CA 91950
Tel: 1-800-331-1637


Returns are easy! We understand that in some situations returns or exchanges may be necessary. We also want you to be stoked on your purchase. If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order. Items must be in new condition with original tags and packaging.

Please make sure your wetsuit fits before taking it in the water. We are not able to take returns or exchanges on used wetsuits.

Please reference our full Return Policy.

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