Water Temp Rating * 40 - 45 Degrees & Up
Style Fullsuit
Thickness 5/4mm
Neoprene Type 100% Stretch
Seam Construction Sealed & Taped
Zipper Style Horizontal Chest Zipper
Internal Features Cuff & neck seals
Additional Features Detachable hood -Chafe free neck - Key pocket
Manufacturer's Part Number 4762
* Water temperature ratings are only a guide and are very subjective. If you are cold, get out of the water and seek warmth.
Allergy notice: It's rare, but neoprene (wetsuits) and/or the materials used in its construction can cause allergic skin reactions. If allergic, discontinue use and consult a physician.
Warning: California Proposition 65
Warning: This product can expose you to chemicals including Chloroprene, which is known to the state of California to cause cancer and birth defects or reproductive harm. For more information, go to

O'Neill Size Chart:

O'Neill Wetsuits Size Chart

Wetsuit Reviews: 5/4mm Men's O'Neill MUTANT Hooded Wetsuit

Average Customer Review: 5 out of 55 out of 55 out of 55 out of 55 out of 5 - 15 Reviews

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5 out of 55 out of 55 out of 55 out of 55 out of 5 Suit fits a 5'10
Reviewer: Michael 'Scott' Johnson   |  3-19-2016

I always get nervous buying clothing (or wetsuits) without trying them on first. Upon arrival I put it on, and I gotta say its the nicest suit I've ever owned (I've owned maybe 5 wetsuits in my life). Also - it fits SO WELL, no baggie spots, no overly tight spots. I am so excited to be warm in the cold Pacific Ocean!! Up to now I just layered a bunch of warm rash guards under my 4/3 Excel, which never quite did the job. Also, hoods rarely fit me well, and this one again fits perfectly. I am 5'10" and 145 lbs, I expect it would fit great up to about 170 lbs, because the material is so stretchy. The removable hood is a huge plus, as are the wrist and ankles - which fit tightly without the need for velcro straps. I am hugely impressed.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Mutant 5/4
Reviewer: J   |  5-5-2014

I don't use this suit for surfing as I'm a kayaker, but I do encounter just as cold water as surfers do kayaking in the cold as hell April water. I've had to roll several times this season (and even had a lil swim in 55 degree water) and this suit not only kept me warm, but it also seemed to keep me pretty dry (the kayaking company wetsuits do not do this!). Paddlers looking for a good wetsuit need not look further. This is a very, very good suit. O'neill should start marketing it for kayakers.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Go w/ Mutant...
Reviewer: JJ P   |  12-19-2013

I bought a 4/3 mutant in 2006 and was hooked ever since. 1st off the suit is still in good shape to this day and I been using it frequently every cold-season. I just bought the 5/4 and its even warmer. The interchangable hood is really the selling point. Versatility, flexibility, and keeps you warm. Only thing it needs now is a fly zipper but thats asking kind of a lot for a wetsuit.

4 out of 54 out of 54 out of 54 out of 54 out of 5 like it
Reviewer: jusitn   |  4-14-2013

great suit for the money. i like the removable hood, although the zipper on the back can create a stiff spot on your neck/shoulders during a long session.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Wetsuit Wearhouse is the best!
Reviewer: Mikey   |  1-2-2013

My 6th suit from the Wearhouse, customer service is the best. Now about the suit: I'm 6' 180 lbs, originally went for the LT. Always had a back zip suit, so getting in and out of this was a Houdini- like experience. Got some advice about getting in and out of the suit, but still was having a tough time. I opted for the XL, which fits great, with no cold LI winter water flush- through, also, it was much easier to get on and off. Super flexible, great for paddling, not too tough to get on or off and WARM. Bottom line: Best winter suit in it's class, removable hood is a big plus, and, if you're a little old and creaky like me, size it up one for easier on and off.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Don't go by the sizing chart
Reviewer: PB   |  12-12-2012

I ordered this suit after carefully studying the sizing chart. It was tight! Especially in the arms and neck. I should have talked to one of the pros first. After one phone call, they took it right back and promptly shipped me the right one. I never used it, but the quality looked fine.

5 out of 55 out of 55 out of 55 out of 55 out of 5 High Quality/Worth every penny esp cause you only need 1
Reviewer: Chris   |  10-24-2012

Ive been using this wetsuit to surf in north east (all winter) over the past year. The versatility of the hood is really nice, allowing me to use only one suit instead of having to buy two (a 3/2 and a 5/4)which saves money. This suit is not cheap but it is high quality and keeps you warm and dry. Stretches really well and keeps the water out with nice seams. Would definitely recommend and buy again whenever it gets old.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Like the removable hood
Reviewer: Steve Price   |  4-14-2012

Just surfed with it today in Santa Barbara for the first time. Wind was howling and water was cold ~52 but with the hood this suit was perfect. Great suit for the pice. I love the hood/no hood option.

5 out of 55 out of 55 out of 55 out of 55 out of 5 My best winter suit by far.
Reviewer: Singlefin747   |  12-13-2011

Great suit at the mid-level price. I am able to get the Hyperflex stuff at a very low price, however they dont fit and work as well as O'neill suts so I busted out some $ this year for a good winter suit. I have to say that over the course of 20+ years surfing N. Cal, Nove Scotia, and all over New Enlgland that O'neill suits have held up the best and been the warmest. The suit fits well, I am 6' and 205# wearing an XL. Entry through the neck is easy and doesn't feel like you are going to rip it, like some others. Seams and cuffs do not leak and appear to be well constructed. My favorite feature is the removable hood. So many winter suits have the hood permanently attached and you end up not using it as much in Fall or Spring when you might want the xtra rubber sans hood. All you do is zip the hood off and zip on the normal collar that comes wit it and its just a fullsuit. This also seems to dry rapidly but that could just be my imagination. Bottom line, if you can spare the $ get this over the lower priced suits. It will work better and last longer and you don't have to spend too much more for it.

5 out of 55 out of 55 out of 55 out of 55 out of 5 Above and Beyond
Reviewer: About It   |  5-2-2011

This wetsuit was a great investment!!! I surf jersey and was out this past weekend and was sweating out in the water this suit kept me so warm. spent about 3 hours in the water and if it wasn't for my arms being tired i could have stayed out for another 5 hours i was so comfortable in this suit. not restrictive at all either. i had full movement and flexability. I highly recommend this suit to anyone surfing cold water areas.

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