O'Neill Mutant Legend 4.5/3.5 Hooded Chest-Zip Wetsuit

I just bought my second Mutant wetsuit from Cleanline after getting nearly 10 years out of my old one. This is my absolute favorite suit for PNW surf with the hood and collar option. My old version was 5 mil and this 4.5 mil feels even more flexible.

I use this suit mainly for kitesurfing in Chicago area where water never stays that warm for long. I also use a hybrid dry wetsuit like O'neil fluid or Forward WIP semi-dry suits for when temps fall into upper 30's into 50's. The Mutant is my go to suit in general because of the flexibility as well as ease of in and out for a snug fitting suit. The give on the technobutter is about as good as it gets and the interchangeable hood and collar are amazing. Not sure why someone has to make a comment about zipper being less than idea when it is just what it is and nearly all suits have an element of "getting to know you, getting to know me". The huge opening at the top makes it much easier to get in and out of compared to other suits where I felt trapped. I'm top heavy with wide shoulders so the flexible large opening at the top works better than any other options I've tried and have tried a 1/2 dozen in shops.

Also, someone mentioned its a drag when you loose one of the interchangeable pieces.... guess what? They are replaceable and made to order. Loose the hood, simply use a add-on hood. Loose the collar is a little more inconvenient but when this suit is on it's hard to beat the convenience of swopping between hood and collar combined in ONE SUIT.
I ordered an extra hood and collar to have on hand in the event I did loose one so I have that in my back up gear inventory.
All other variables are pretty much the same across other high end suits.

Lastly, Price is great.

O'Neil Mutant ls the most reliable wetsuit I have ever gotten, out lasting the Super Freak by two years; plus they are comfortable and warm.

Had this wetsuit for the PNW for a year. Awesome technology, warm, and comfortable, but not reliable. The back panel started to leak after about 1 year or 2 summers. The collar is also tearing apart from taking it on and off. I’m a surf coach, so I tent to use them quite a bit, but will try a different brand next time.

First upgrade in a long time for me... LOVE this suit. They added a nice card and are so friendly. Suit is super stretchy, soft and warm. Fits like a glove

I love the wetsuit design, warmth, and ability to swap between the hood and collar. The front zipper is a bit of a nuisance as it takes a few tries to get it lined up each time. The wetsuit is Super flexible and easy to get in and out. It's my favorite wetsuit but I wish it was more durable. I've had this wetsuit for 13 months so far and had a torn zipper pin which O'Neill replaced the zipper under warranty. The neoprene firewall also ripped a small tear while getting out of the wetsuit which I was able to do a quick fix with O'Neill's liquid sealer. I think O'Neill changed out the front firewall when they replaced the front zipper because the logo on the front neoprene firewall was gone when I got it back from O'Neill. My wetsuit is now out of warranty so hopefully no more issue with this suit.

Maintains the usual sizes and excellent quality.

I’ve been using this suit for efoiling in Lake Ontario in May and it’s been incredible. Very comfortable and warm. True to size. Looks good imo. Takes some practice getting it off, but other than that it was a perfect purchase.

Had this as a 4/3 and it was the best suit I ever owned. Lasted for years!

O’Neal products for me are worth every penny! Consistent quality , comfort , fit , and performance. I’m a wide shouldered guy and really appreciate the Flexibility of the Materials to get in and out of the Suite and the comfort when it’s on. Perfect spring Suit -- 48 degree water kite foiling the Gorge too. The service was great! I will buy from Cleanline again!

I had given up surfing for a couple of years in part because my decade old Rip Curl 4/3 wasn't keeping me warm. After hearing the merits of the Mutant from a friend who surfs in all conditions, I decided to try it out. After struggling a bit with zipping the hood/collar, I figured it out. Took the suit for a spin and was amazed how warm it is both in the water and countering the wind...and how stretchy/easy to paddle it is. The suit was such a game changer for me, that I've been in the water 5 of the last 9 days including one rain day. The thing is amazing.

I've read a few internet reviews before buying the Mutant and had some concerns. Now that I've had a chance to use the wetsuit with the collar and with the hood, I can say overall it's a good wetsuit with the convenience of switching between the two. Getting in and out of the Mutant is not much different than my O'Neill 3/2 which is fairly easy to put on and remove.

The only knock on the Mutant is the collar can flush underwater at times as it doesn't seal as well as my other O'Neill suits. Switching between the hood and collar and zipping them closed is a bit of a pain since you have to line the zippers up just right and then everything works fine. I guess that is the trade off for being able to remove/ swap the hood and collar.

With that said, the Mutant is really warm, flexible, light weight, nice fitting, and feels great in the water. Great transition wetsuit from my 3/2 for the winter until the water temps get down in the mid/ low 40s then might be time for the 5/4 Hyperflex.

Great fit
Great flex
Great seal

For the price the TB3 should extend to all the regions of the suit like it does on the Pyscho Tech model and the zipper should be the F.U.Z.E closure style / Redzone Water Resistant Zipper. Just my opinion.
The current zipper can be difficult to start on both the hoodie and neck option. But once zipped it keeps the water out.
Other than that the suit is flexible for the 4.5/3.5 mm and it is warm.

Great suit and great service! They even added a personal touch, made me feel stoked to support a great local surf shop. 10/10 would recommend. Lightning fast shipping too!

Haven't worn yet because water is still in the thirties here in NY. Suit seems really well built and recently moved to Oneill suits. Have a psycho tech that's amazing that I wear now. Will soon update my warmer water suits as well. Cleanline shipped quickly and dig the candy and stickers.. one of my go to shops when I can't find gear in my local shop.

The overall wetsuit is fine but the elastic cinches broke within 2 weeks of use. Big bummer

This suit is dramatically warmer and more flexible than the three year old 4/3 o'neill with TB2 that it is replacing - which was a great suit. I love it. My only gripe is that its a bit of a pain to get the zipper on the front when you put on the neck or hood attachment.

I've had this suit for a few months and am very happy with it so far. I upgraded from an old Mutant 4/3 that has served me well for 10 years. This one fits almost identically, feels a tad lighter and more flexible, and is a little warmer. I get cold easily, and this kept me very toasty this winter in North Carolina with water in the 50's and air near freezing. Psyched that it's versatile enough I should be able stay comfortable as the water warms up this spring. The folks at cleanline sent out the suit quickly and even threw in a T-shirt and some stickers!

My only reservation about this suit is the price. I was able to snag mine on sale and feel like it's been worth it. Is it warmer and more flexible than my old Mutant? Is it ~$100 warmer and more flexible? Debatable - probably depends on how much money you have at the moment to invest in a quality suit.

This is my 4th Mutant, but 1st with TB3 and I could not be more pleased. I mostly surf in the PNW and the 4.5/3.5 with the hood is perfect. When I make my way further south to NorCal, having the hoodless option is why I continue to love these suits. Also, the service at Cleanline is always topshelf!

I’ve had wetsuits for 25 years and I recently purchased this one. Originally I winced at the price but even on my first session I could tell it was worth every penny. The warmth is absurd and the flexibility is even better. It almost felt hot in 55 degree water, but felt like I wasn’t wearing a shirt while paddling. This suit is a must for Northern CA and up guys. Hats off to the crew over at O’Neill.

This is my second Mutant and I have found no reason to change. Fit is awesome and works great for the Oregon Coast. Cleanline is amazing and always provides knowledgeable, helpful, and friendly service. Could not be happier.

Got it on the black friday deal. Cleanline surf was super friendly and nice shipping the suit with a handwritten note and a bar of wax and some starburst’s that i really appreciate. The suit is by far the most comfortable suit i on. The flexibility far exceeds the ripcurl flash bomb like and paddling is way better. I haven’t had much sessions past two hours just because I’ve always been so exhausted, but every single time I’ve worn the mutant legend I’ve had three hour plus sessions and only get it because the surf changes. There’s almost no restrictions when paddling and it feels like I’m swimming. The tb3 feels super silky and comfortable. With the hood I’m super toasty in 55-58F waters with only booties. Suit is kinda leaky but that’s because i ordered the xl when i should’ve gotten the l. Otherwise great suit and definitely getting one again.

I live fairly south in Florida, so a 4/3 wetsuit is for travel, at least to north Florida, usually farther. The Mutant had long seemed a no-brainer, especially after an odd February weekend at Cape Hatteras where warm air and the Gulf Stream at the shoreline made wetsuits somewhat optional, and I'd brought a 5/4. This one is looking promising. It was supposed to be at Hatteras tomorrow, but obligations are keeping it in Florida for the moment.

This is my 4th Mutant and by far my favorite in the line. The techno butter upgrade creates more mobility and flexibility without sacrificing warmth. I knew the suit would be good, but what surprised me was how great the customer service was at Cleanline. I've ordered many products from them and I'm always amazed by the promptness, professionalism, and kindness of their team. Thanks for being a great surf shop and sharing the stoke Cleanline!

Purchased this wetsuit a few weeks ago and so far I am very happy with it. Seams are very tight and let very little water into the suit. Also the customer service with Cleanline has been top notch.

THE ONLY PROBLEM WAS THE ZIP ON HOODIE WAS TOO SHORT , HAD TO ADD 2 INCHES TO THE FRONT AND BACK ZIPPERS. WAS ALMOST IMPOSSIBLE TO ZIP UP, I NEEDED HELP EVERY TIME , UNTIL THE HOODIE WAS MODIFIED.

I live in Monterey, CA...this thing keeps me warm in that cold water! That techno butter neoprene rocks my socks off!