Search  for anything...

O'Neill Men's Reactor-2 3:2mm Back Zip Full Wetsuit, Lightweight Warmth with Good Flexibility for Surfing, Paddleboarding, Kayaking

  • Based on 1,400 reviews
Condition: Used - Like New
Checking for the best price...
$136.09 Why this price?

Buy Now, Pay Later


As low as $22.68 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Oct 22
Order within 1 hour and 5 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: Large Short


Color: Black/Black


Pattern Name: Wetsuit


Description

The O’Neill Reactor-2 wetsuit is engineered for performance in a value-driven package, making it the perfect choice for any water enthusiast. Combining stretch, durability, and comfort, this wetsuit delivers everything you need for fun on the water without compromising quality. Designed with Ultraflex neoprene, the Reactor-2 moves with your body for unrestricted performance while still providing dependable warmth. Flatlock-stitched seams enhance comfort and durability so that you can stay active longer without irritation. Whether you’re surfing, swimming, paddling, kayaking, wakeboarding, waterskiing, snorkeling, diving, windsports, or just enjoying a day on the water, the Reactor-2 offers a reliable fit, fresh modern style, and the trusted O’Neill quality that’s built to last. Available in multiple sizes and color options, this wetsuit is ideal for beginners, water adventurers, and seasoned athletes alike.

Product Dimensions ‏ : ‎ 16 x 16 x 5 inches; 2.07 pounds


Item model number ‏ : ‎ 5040


Department ‏ : ‎ mens


Date First Available ‏ : ‎ August 4, 2017


Manufacturer ‏ : ‎ O'Neill Wetsuits


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #13,192 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #8 in Full Wetsuits


#8 in Full Wetsuits:


Customer Reviews: 4.4 4.4 out of 5 stars (1,400)


Brand Name: O'NEILL


Sport Type: Boating, Diving, Kayaking, Surfing, Swimming


Age Range Description: Adult


Global Trade Identification Number: 08


Item Highlight: Lightweight Warmth and Flexibility for All Water Activities


UPC: 191015029008


Number of Items: 1


Included Components: Water Sports Equipment


Item Weight: 1.7 pounds


Item Type Name: Wetsuits


Manufacturer: O'Neill Wetsuits


Model Number: 5040


Unit Count: 1 Count


Manufacturer Part Number: 5040


Warranty Description: GENERAL WARRANTY INFORMATION AND POLICY If the product is found to be defective under normal use and proper care, O'Neill Wetsuits will repair or replace, at O'Neill Wetsuits' option. This decision to replace or repair is made by the O'Neill Wetsuit Warranty Department after receipt of the defective product. At no time does O'Neill Wetsuits offer refunds. For more information, go to


Closure Type: Zipper


Sleeve Type: Long Sleeve


Temperature Rating: 12 °C


Wetsuit Form Type: Full Body Suit


Item Thickness: 3 millimeters


Chest Size: 42.5 inches


Size Map: Large


Waist Size: 35 inches


Material Type: Neoprene


Color: Black/Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 22

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

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works in a Pinch, But It's Not Good
Needed a 3/2 wetsuit for some unexpected good surf while visiting Florida from Hawai'i. Water was way too cold for me in only boardshorts (been spoiled too long with that tropical blue Hawai'i water..,) and the local surf shops didn't have my size. This was the only Large Short 3/2 wetsuit I could get with next day delivery. The Good: It did the job. And for cheap; barely 100 bucks. Totally warm in 65 degree water on a moderately chilly 45 degree day (probably not objectively all that cold, but it's very cold compared to what I'm used to.) The neoprene was fresh, soft, and reasonably comfortable. I was expecting much less supple rubber for the cheap-o price. Seams were ok, not great. Sizing was true to Large Short. The Bad: The key pocket was just a flimsy rectangle of fabric lightly sewn along the inside of the zipper. No loop or lanyard to lock your key in place, and it did not feel secure. You could easily rip the thing off with your fingertips. It didn't even close with a strip of velcro or anything. I kept thinking I was gonna lose my key and get locked out of my car. Zipper also wasn't great in general. I wouldn't expect it (or the key pocket) to hold up to repeated use. The Ugly: No flush guard. The back zipper is pretty exposed without that flat piece of neoprene covering where your back meets the zipper. This means a lot of water getting into suit all at once from time to time. Didn't affect warmth much, but it caused a lot of very annoying "ballooning," where the sudden flush of water would inflate the small of my back and down to my legs. It was especially bad after deep duck dives and close-out barrels (the official state wave of Florida.) Never had this problem with any other wetsuit. It was a hassle to deal with and very distracting. Overall: While it was a functional wetsuit for a super cheap price, the flimsy key pocket and the absence of a flush guard cost this wetsuit serious points. It was good enough to help me score a few days of chest high beach break tubes on the mainland without freezing, but I would have gladly spent a bit more money and bought something better if it had been an option. No can recommend, brah. ... show more
Reviewed in the United States on February 3, 2023 by Adam Adam

  • Great suit
Great suit, comfort. These suits last a long time
Reviewed in the United States on July 17, 2022 by Scott B.

  • Bravo O'Neill
Bravo O'Neill, for making a suit for short fat guys! I'm 5'6" 205-210 lbs and the LS size fits almost perfectly (Large Short, AKA Short and Fat). I have a shorter inseam than most 5'6" people and I have a big beer belly. The cut of the suit is almost flawless. I'm not even really on the chart for that size, either, but I had a hunch. Never had a wetsuit before, so I tested it out in my 65°F pool and I was nice and warm. Time to ride stand ups in the winter! ... show more
Reviewed in the United States on March 13, 2020 by Matt

  • I highly recommend this
I use this for scuba diving and I have used the same model/brand/size for years, once a week. There are more size options than for most other brands so you should get a better fit, if your body type is none standard.
Reviewed in the United States on August 15, 2021 by Amazon Customer

  • Great fit
Haven’t gotten out in it yet, but first and foremost it fits! I’m 5’8”/175 with broad shoulders and chest to go with my chicken legs. LS is doing me right. I’ll update after I get out on the water in it.
Reviewed in the United States on January 18, 2021 by Antone F

  • happy customer here
I was worried for the fit (5'9 180 lbs broad shoulder and chest), order a LS and it fits perfectly well! Took it to surf on weekend and couldn't be happier.
Reviewed in the United States on June 30, 2021 by The Scorpion Man

  • Great wetsuit, especially for the price
Water comes through the zipper but it's a great suit for the money. I paid $115. Comfortable and good for surfing down to about 63° water temp for me with booties. I'm 5'8" 190lbs and the LS fits almost perfect. Little bit of extra room but that helps with mobility.
Reviewed in the United States on April 10, 2020 by Dustin M.

  • saved me from fin
Originally I wrote a very bad review for this wetsuit, but today it saved my left calf from a deep gash from one of my fins, so I take it all back. Thanks, Wetsuit!
Reviewed in the United States on December 24, 2020 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...