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. The...

O'neill 3/2mm Reactor II Men's Full Wetsuit

O'Neill

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O'neill 3/2mm Reactor II Men's Full Wetsuit 3X-Large Black

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In Stock

O'neill 3/2mm Reactor II Men's Full Wetsuit Large Black

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O'neill 3/2mm Reactor II Men's Full Wetsuit Large Black/Graphite

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

Temporarily On Backorder

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O'neill 3/2mm Reactor II Men's Full Wetsuit Large Black/Ocean

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O'neill 3/2mm Reactor II Men's Full Wetsuit Large Black/Slate

Please note: You can order this now and have us ship it as soon as it arrives. We will not charge your card for any back ordered items, until it is ready to actually ship.

On Backorder

O'neill 3/2mm Reactor II Men's Full Wetsuit Large Short Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Large Tall Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Large Tall Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit Large Tall Black/Slate

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Black/Graphite

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Black/Slate

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Short Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Tall Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Tall Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit Medium Tall Black/Slate

O'neill 3/2mm Reactor II Men's Full Wetsuit Small Black

O'neill 3/2mm Reactor II Men's Full Wetsuit Small Black/Graphite

O'neill 3/2mm Reactor II Men's Full Wetsuit Small Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Black

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Black/Graphite

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Black/Slate

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Short Black

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Short Black/Graphite

O'neill 3/2mm Reactor II Men's Full Wetsuit X-Large Short Black/Ocean

O'neill 3/2mm Reactor II Men's Full Wetsuit XX-Large Black

size

color

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped. Estimated to Ship: 07/2025.

Expected delivery: 08/27/2025. Please note: You can order this now and have us ship it as soon as it arrives. We will not charge your card for any back ordered items, until it is ready to actually ship.

Please note: You can order this now and have us ship it as soon as it arrives. We will not charge your card for any back ordered items, until it is ready to actually ship. Estimated to Ship: 07/2025.

Expected delivery: 06/12/2025. Please note: You can order this now and have us ship it as soon as it arrives. We will not charge your card for any back ordered items, until it is ready to actually ship.

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Scuba

Wetsuits

Scuba Wetsuits

O'neill 3/2mm Reactor II Men's Full Wets...

Shop the O'Neill 3/2mm Reactor II Men's Full Wetsuit. Flexible, durable neoprene with flat-lock seams. Ideal for water sports. Order today!

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. The Reactor-2 Full Suit 3/2mm comes equipped with a back-zipper entry system that provides easy entry and exit with a water-resistant closure. Ultra-stretch, super soft and premium nylon 2 neoprene for superior feel, flexibility and high performance. Seamless paddle zones are flexible design utilizing minimal seam placement for comfort. 100% ultra-stretch super gooey for superior feel and flexibility.  All seams are sewn with flat-lock stitch and are breathable in design. The suit comes with Kyrpto knee pads for protection of this high wear area. A double super seal neck adds comfort and reduces water exchange. When you're sitting on your board or boat between sets or on a surface interval, the wind-resistant smooth-skin chest and back panels will keep you warmer. The rear zipper comes equipped with a pull tab leash to help in easy self-donning and doffing. Suit is available in multiple sizes.

Great Wetsuit

Fantastic suit. Highly recommend. Fits perfect if you follow sizing chart directly.

Great Suit

I bought this for January scuba in southern Belize where the water temperatures topped 80? F (even at depth).  I get cold easily, so was happy for the wetsuit insulation and protection from jellyfish tentacles.  The wetsuit was flexible and effective, and packed down small, but mostly I got it because it came in medium tall, necessary for my body shape (6'2", 165 lbs).  It fit well, was a good price, kept me from getting cold, and had nice blue accents. Not sure about durability yet (12 dives on it).

Affordable medium tall warm-water wetsuit

I was looking for a suit to wear during the summer swimming in the Atlantic on the beaches of Ireland. Not wanting something overly bulky, but with enough movement and warmth for the season. I'm 6'4" and 170 lbs. originally I ordered the medium tall but it was just too constricting and the neck felt like two hands strangling me. It was easy to return and substituted for the large tall. What a difference, snug but not constricting, sleeve length and leg length are just right and feels comfortable. Haven't been in the water yet, but not anticipating any issues. Considering the temperature in July/August in Ireland it should be warm enough for the ocean. Definitely would recommend and customer service is easy to deal with in my case.its real well made and having the long cord attached to zipper makes it easy to zip up. Like others, I would recommend putting either a plastic bag or plastic storage bag over your hands and feet while pulling on the suit. It makes it easy.

Great fit and construction.

It took me 3 tries to find the best size M chart-wise, looked to be the right size. BUT I could not get the zipper up without assistance. LARGE zipped easily but it felt too long in the arms and legs and a bit too loose at the chest. LS was just right. I went from O'Neill to Dicks to REI before I got it right.

It took me 3 tries

good quality for the money

Awesome suit

Fits absolutely perfect. Definitely recommend ????

Fits absolutely perfect. Definitely recommend

Comfortable, easy to get in and out of. Good quality for an entry level suit. Arms inch

Comfortable, easy to get in

I'm a 6 ft 175 lb female, 38 B chest, 34 in waist. Mens Large

Good fit

Excellent wet suit

I always had good luck with the O'Neil wetsuits! Very comfortable, warm and very flexible.

Reactor-2 3/2 mm

If it's fine, I really enjoy the peace well worth the effort

Excellent three mill wetsuit had a great price

Great price, flexible, fit to size, good quality and has a great look!

Rector-2

Have several Oneils wetsuit. 
I Left my 3/2? behind recently so needed an inexpensive replacement while away. 
Being 5?7? and very skinny in the legs and wrists,  found medium to nearly fit right but not perfect, lose in some spots . Chart size didn?t quite match reality. 
Although not O?Neil?s fault the store had limited sizes with my normal size not quite as snug as I would like, I just tried on whatever size seemed right when  held up to my body.  Ended up with size 19? I don?t know if that?s children or women?s? But it fit nice on legs, ankles , wrists and hight, but very tight across shoulders, upper arms and neck. 
I bought it, but I was very restricted in it and tired easily because it wasn?t as stretchy and flexible as I was hoping with a newer suit. I got a little cold and shivers after about an hour, (normally last longer) probably part to do with being a little-restrictive and I lost heat through energy loss, (because the water was 20c (70f) )which isn?t too cold., so it could?ve been partly I got  the wrong size, or it?s partly that it?s flat stitched but not sealed and leaks minimal along stitching areas, or both,I?m not sure. 
I normally like Oneil?s for price and fit, but when shopping by labels for sizes, perhaps they could make clearer labeling sizes with and make more in between sizes like other companies. 
But overall I still recommend.

Questionable mid sizes

Good fit.

This wetsuit is just what I needed for those cooler days to ride my Waverunner on Lake of the Ozarks. Great fit and very reasonable price.

Cooler weather PWC riding

Great fitting tropical weight suit . Went on easy and very comfortable . Highly recommend this suit.

Great suit

I've worn O'Neill wetsuits for 40 years. I've purchased the last 3 or 4 online without trying them on depending on the perfect fit of the XL size. I'm an athletic, not fat, muscular, middle-aged guy, 6'1" 205 pounds, 34 inch waist. This XL suit is comfortable, easy to get in and out of and warm enough for chilly air and cool water. It would not be suitable for cold conditions, air or water. Most of this suit is nylon on the outside allowing the evaporation cooling effect, not desirable for cold air conditions in wind sports. If I had it to do over, I might spring for a smooth skin suit and I'd try it on first. Back to fit: This suit is looser in the legs than all other XL O'Neill wetsuits I have owned. It will work, but will not go on my "good wetsuits" list.

Different fit

This suit unzips every 10 mins or so when I'm in the water.

This suit unzips every 10

Great suit and shipped quickly but I?ve had a tiny bit of chafing in the arm pit area.

Great suit and shipped quickly

Got this for triathlon. Fits very well and looks great! Does a great job with temperature regulation and decent buoyancy. The materials do help to a degree, but remember chafing protection for long swims!

A suggestion: incorporate a small, secure pocket on the inside. There is already a mini ?flap pocket? where I put a key inside, but some velcro or closure would feel more secure

Got this for triathlon. Fits

Use to be 5'8 just short of that now and I am at 180. The fit is just a little snug but the next size up I think would have been just a little to big. Over all "Great" for me! Movement in the shoulders is better than I thought it would be & water was 63-65 and I was just fine.

Use to be 5'8 just

The nick seal is scratching my nick.

The Zipper dose not stay locked up, even if zipper being locked over the nick sticky part

Nick scratch and zipper issue

This is Wetsuit for Swimming Pool, Surfing and many more

This is a great wetsuit

Wore it out on a wakesurf day with 59 degree water and it wasn?t insanely toasty but not cold either. Super flexible, good materials. For the people who complain about the zipper, I think they are getting too small of suits. I have been a large in everything in my entire life and for some reason I had to go with the xl based on my shoulders. The xl fits great and the zipper didn?t fall because the wetsuit isn?t pulling itself.

Solid overall

Fit my body type very well, I am 6' 150lbs. Kept me nice and warm and was comfortable to wear. Great full wet suit.

Excellent fit

I?m 6?4 255 and this 3xl fit better than expected, perfect sizing and movement

Excellent suit

Had a last minute Santa idea to get my 16 and 20 year boys old wetsuits do Christmas. These seem to be reasonable quality, have a great sporty look and worked as expected during our week at the beach over Christmas. Next day shipping was affordable and delivered as promised. Would order these suits and from scuba.com again.

O'neill 3/2mm Reactor II Men's Full Wetsuit Small Black/Graphite

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