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O'Neill Men's Reactor 3/2mm Back Zip Full Wetsuit

  • Based on 985 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Oct 13
Order within 12 hours and 47 minutes
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Size: Medium


Color: Black/Slate


Description

The newly upgraded REACTOR-2 is engineered for performance in a value driven package. A perfect combination of stretch and durability. Fresh colors and graphics with style that's built to last.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 15 x 3 x 4 inches; 5 Pounds


Department ‏ : ‎ mens


Date First Available ‏ : ‎ January 15, 2012


Manufacturer ‏ : ‎ O'Neill Wetsuits


Best Sellers Rank: #180,337 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #191 in Full Wetsuits


#191 in Full Wetsuits:


Customer Reviews: 4.5 4.5 out of 5 stars 985 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 13

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

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Top Amazon Reviews


  • Great wet suit
Size: Large Color: Black/Graphite
Great wetsuit. I love the different thickness. It's true to size and fit perfectly 👍
Reviewed in the United States on July 9, 2025 by Jose

  • Excellent Performance & Value!
Size: X-Large Color: Black
Outstanding suit and outstanding value! I bought this wetsuit for spending a week snorkeling in waters where temperatures ranged from 68F-73F. I don't get cold easily, but I knew that I would need something to ensure I wouldn't freeze. The construction of this suit is solid. I used it no fewer than a dozen times and had no issues with tearing/damaging the material. It was form fitting, kept me warm, and it was very comfortable on my body frame. Besides working well for its purpose, I looked like a pro without breaking the bank. It wasn't the cheapest on the market, but you can also spend a lot more. Given the quality, I felt it was a very fair price. For packing it in a suitcase and keeping its size to a minimum, I used a high quality vacuum packing bag (the kind that doesn't require a vacuum cleaner) and it packed down to the size of a pair of men's jeans. I also really liked that this particular item qualified for Amazon's free returns program. I was able to easily return one that didn't fit. ... show more
Reviewed in the United States on October 24, 2011 by Tito

  • Great lightweight suit for scuba in the caribbean
Size: Large Tall Color: Black
I bought this wetsuit for my scuba class. I did 2 classes without one and became cold in the pool after an hour. It definitely warmed me up, but I didn't feel completely overheated in it. I also wore it in Curacao for scuba diving to protect me from the elements. Its not thick enough that you will swelter in the sun as I was wearing it during my surface intervals in between dives and I didn't feel too hot doing so. I am 6'1" and have an athletic build. This suit fit me perfectly (Large/Tall) The knee pads are amazing. When kneeling underwater, it is very comfortable with the padding. The suit isn't very hard to get on and off (even when wet). The only thing that I would say if i really had to dig for a complaint is the neck. But I don't like anything around my neck, so that is a more personal gripe. Plus the neck is adjustable, so it isnt that bad. I highly recommend this lightweight suit for diving, even in warmer waters, to protect you from jelly fish , fire coral, and any other elements if need be. ... show more
Reviewed in the United States on November 15, 2013 by Simmer

  • Wetsuit for chilly temps
Size: Large Color: Black/Graphite
Fits husband great! Easy to get on and off
Reviewed in the United States on June 22, 2025 by Amazon Customer

  • Great Entry Level Wetsuit
Size: Large Color: Black/Red/Black
I spent a long time looking for a good wetsuit at an affordable price and from a reputable company so I settled on the O'Neill Reactor 3/2. The fabric is excellent and very stretchy and the stitching is flawless. The zippers is heavy duty and although I'm not particularly flexible I can zip it up with no problems. I needed a wetsuit for kayaking (specifically a surfski) so I purchased it one size up so I would have a little extra room for my shoulders for paddling and my backside for sitting. It worked perfectly, keeping the cold water off of my skin and keeping me warm. I am 5'9" 160 and I picked up the large. If I wanted one for swimming I think the medium would be perfect. The red version looks pretty cool. Do your homework on wetsuits before buying. There is a reason this is one hundred bucks and others can be five hundred. You will get what you paid for. For me this is what I needed and am very pleased with it. ... show more
Reviewed in the United States on December 1, 2017 by Steve Taylor

  • High value for money
Size: Large Color: Black/Graphite
That's one good wetsuit! The most important thing, it matches the size chart, and I could find the exact match! I use it in the Mediterranean Sea and it's perfect for the waters there
Reviewed in the United States on January 26, 2025 by Ofek Zfoni

  • LT worked for me.
Size: Large Tall Color: Black
I was worried about finding a wetsuit that would fit me. Most of the size charts do not have the correct size and weight for me. I am just barely 6'5" and 190-195 pounds. Most other wetsuit size charts would either put me in a XXXL for the height, and a L or XL for the weight. Most manufacturers offer a XLT or LT, but I would seem to be too tall for the LT (and XLT for some manufacturer) and too light for the XLT. O'Neill has their LT go up to 6'4" with my correct weight so I figured I would give it a try. The only thing I was worried about was the chest size. O'Neill has their chest size for the LT going from 40 - 42, and I am a 44. So it is a little snug, but it actually works out great. I do not have a problem zipping it up. The legs and arms are very snug, But I have been doing Landscaping this whole summer so I have fairly large arms and legs. I have a hard time getting it up around my feet, but it does make it so that there is very little water flowing through the wetsuit, even when I dive through waves and such. It has kept me warm so far. I stayed out bodysurfing in Southern California a week ago for about an hour and a half and was only slightly chilled at the end. I could have easily stayed out longer. Without a wetuit I would usually make it 30- 40 minutes before I was shivering too much from the cold. ... show more
Reviewed in the United States on August 16, 2011 by B. Hatch

  • Awesome Suit!
Size: X-Large Color: Black
For the price this is an amazing wet suit. The fit is great all around and though the wrists and ankles are snug they are not too tight for me. (My ankles are large, wrists probably a medium for men). The suit was easy on and off. The padded front is a major plus as diving sometimes brings contact with the bottom or rocks; it feels very protective on contact. Swam theough and underwater tunnel and had to do some bends - when I scraped the edges of rock the suit protected against abrasions. Just a plus. The insulating factor is awesome! Don't even feel the cold water. Also, another plus, when snorkeling it aids in floating making the trip less laborious. For the price, recommed? ABSOLUTELY!! ... show more
Reviewed in the United States on August 19, 2018 by P. Kelley

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