Search  for anything...
O'NEILL

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

Based on 1,002 reviews
Condition: New
Checking for the best price...
$150.79
Save $9.15 was $159.94

Buy Now, Pay Later

As low as $25.13 / 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

FREE 30-day refund/replacement

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: In Stock.
Fulfilled by Amazon
Arrives Thursday, Nov 5
Order within 15 hours and 6 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

Recently Viewed

At a glance

Condition
New
Size
Large
Color
Black/Ocean
Pattern
Full Wetsuit
Dimensions
16 x 16 x 5 in; 2.07 lb
Weight
1.7 lb
Material
Neoprene
In the box
Water Sports Equipment
Warranty
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

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.

Specs 25

Product Dimensions 16 x 16 x 5 inches; 2.07 pounds
Item model number 5040
Department mens
Manufacturer O'Neill Wetsuits
Brand Name O'NEILL
Sport Type Boating, Diving, Kayaking, Surfing, Swimming
Age Range Description Adult
Global Trade Identification Number 88

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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.

Similar Products

Top Amazon Reviews

O’Neill 3/2 Wetsuit - it’s an excellent choice for its intended use
Size: XX-Large Color: Black/Black Pattern Name: Full Wetsuit
Review Image by Roy Fine
Review Image by Roy Fine
Review Image by Roy Fine
Review Image by Roy Fine
Review Image by Roy Fine
I’ve had this wetsuit for 2 years and I use it for when scuba diving. I have approximately 20 dives in it, so my review is in that context. As seen in the posted pictures, it is still in near-new-like condition The O’Neill 3/2mm “entry-level” wetsuit is a solid choice when you need a bit more than a rash guard but don’t want the bulk or don’t need the warmth of a full 3mm suit. It’s perfect for those in-between water temperatures—where a swimsuit is too little, but a full 3mm feels like overkill. The flexibility and comfort are impressive for an entry-level option; it’s easy to get on and off, and I’ve found it moves well in the water without feeling restrictive. It doesn’t provide the full insulation you’d want for colder dives, but it’s great for milder conditions. I used to dive with a 3mm shorty wetsuit when in Cozumel and that was OK 90% of the time. I now find the O’Neill 3/2 is a better choice on boat dives, especially on that chilly boat ride back to the dock after the second tank dive My only minor gripe, and it is a minor one, this model doesn’t come with some of the sealing features you’d see in mid- to higher-end suits, so if you’re in water with a mild chill, you might feel it around the seams. For the price, this is a very capable wetsuit that keeps the chill off, balancing warmth, flexibility, and ease of use. Definitely recommend for anyone looking for a reliable wetsuit in warm to mid-temp conditions, especially so considering the price and the quality of this item. ... show more
Reviewed in the United States on November 4, 2024 by Roy Fine
Love it!
Size: Large Color: Black/Cool Grey Pattern Name: Full Wetsuit
Purchaded in large im 5ft 10 180lb sleeves sre a tad long and the legs a tad but fits everything else well. I have the LS size but its just a bit small. Tore just under the zipper so large is solid Especially my chest shoulders back. Worn it my last 5 session. So far I love it! I love how it feels and stretches, it's a bit tight around the groin. The back zipper does fall down abput an inch doesnt let water in when it does this just have to sometimes pull it back up every so often.. is annoying but I also have a fairly wide back to cause this. Water drains good and keeps me warm. In North Florida so the water doesn't get to cold. But cold enough. I'd purchase again or recommend to a friend. ... show more
Reviewed in the United States on December 24, 2022 by Chris S.
Good suit - but beware of permanent creases from improper packing/shipping
Size: Large Color: Black/Abyss Pattern Name: Full Wetsuit
Review Image by Chris
Review Image by Chris
It fits well and feels comfortable for a wetsuit. I received it today and tried it on indoors. I'm slightly over 5'11 and weigh 167 pounds, and the Large is a good fit for me. I will say one thing though about getting it from Amazon. They really need to do a better job of stowing/packing these in a way that doesn't damage them: similarly to another reviewer who posted a photo, mine arrived improperly packed (or stored?), creating deep permanent creases on the chest and back material (see photos). There are how-to guides and video tutorials online on how to store, fold, pack, and ship a wetsuit. I have an ocean trip coming up and I don't know if exchanging it is worth the hassle and the risk of not getting a replacement on time, or for the replacement to also be creased from bad storing/shipping. ... show more
Reviewed in the United States on August 25, 2022 by Chris
6’4 195 and LT fits like a glove
Size: Large Tall Color: Black/Black Pattern Name: Full Wetsuit
Review Image by Alex R
I’m new and haven’t put it to the test yet. at my height and weight, finding a suit was a bit of a chore. This felt very good, it was more flexible than others I tried and great quality. It fit from head to ankles and was the right torso length. It is incredibly warm so I’m comfortable it will perform well in the water. I’ll. Try and put out an update when I test it. Update, I did a few dives at 70deg and was relatively comfortable. The third dive I was feeling the cold. I naturally get cold easily. ... show more
Reviewed in the United States on September 20, 2023 by Alex R
2 years and 200 dives in this suit
Size: XX-Large Color: Black/Black Pattern Name: Full Wetsuit
I've had my XXL suit for about 2 years, wear it for scuba diving bc ONeill suits are the most flexible of all. I'm about 6ft, 225 lbs. I've done about 200 dives in this wetsuit and it's holding up great. I can zip it up easily by myself. It's been an excellent purchase and I can recommend it.
Reviewed in the United States on January 10, 2026 by CCC
Fits well, and works well for rated temps
Size: XX-Large Color: Black/Black Pattern Name: Full Wetsuit
Here in the Bay Area, the ocean gets all the way up to 55F in the peak of summer so... I like to have. wetsuit for beach days so I can spend more than a few minutes in the water. This is a great suit for that purpose. Easy to get into and out of too. Depending your local water temps, I think it'd be a good suit for surfing too. There are always new materials coming out that are marketed as "more stretchy", "less restrictive", etc... for surfing but I think the materials have improved so much across the board in the past couple decades that the difference between a modestly priced suite like this one and the more expensive "super flexible" suits is becoming pretty insignificant. ... show more
Reviewed in the United States on June 5, 2021 by Charlie
Great fit!
Size: Large Tall Color: Black/Ocean Pattern Name: Full Wetsuit
I'm 6'3" and have trouble finding a wetsuit long enough for me - until now... This fit perfectly. Long enough for both my arms and legs and didn't fit like a tent around me. Highly recommended for tall, slender men.
Reviewed in the United States on November 15, 2025 by Farmer
Excellent quality, didnt disappoint.
Size: XX-Large Color: Black/Black Pattern Name: Full Wetsuit
Excellent
Reviewed in the United States on March 29, 2026 by Alejandro Rossi
How it works
Checking for best price...