Search  for anything...
O'NEILL

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

  • Based on 1,815 reviews
Condition: New
Checking for product changes
$137.37 Why this price?

Buy Now, Pay Later

As low as $22.90 / mo
  • – 6-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

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: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Jun 12
Order within 18 hours and 36 minutes
Available payment plans shown during checkout

Recently Viewed

Color: Black/Slate


Size: Medium Tall


Features

  • Ideal Entry Level Value Driven Wetsuit; Perfect For Surfing, Diving, Paddle Sports, Lake Activities, And Beach Days
  • Backzip System Provides Easy Entry And Exit With A Water Tight Seal
  • Ultra Stretch Neoprene: Incredibly Soft Premium Material Has Superior Feel, Flexibility, And Elevates Performance
  • Seamless Paddle Zones's Flexible Design Utilizes Minimal Seam Placement For Comfort And Maximum Mobility
  • Wind-Resistant Smoothskin Provides Extra Insulation And Protection Against The Cold
  • Medium Tall (Chest: 39"-41", Waist: 31"-33", Height: 6'1"-6'3")

Material: Neoprene


Color: Black/Slate


Brand: O'NEILL


Sport: Diving, Surfing


Closure Type: Zipper


Chest Size: 39 Inches


Sleeve Type: Long Sleeve


Age Range (Description): Adult


Size Map: MT (6'1"-6'3", 160-180 lbs)


Global Trade Identification Number: 31


Material: ‎Neoprene


Color: ‎Black/Slate


Brand: ‎O'NEILL


Sport: ‎Diving, Surfing


Closure Type: ‎Zipper


Chest Size: ‎39 Inches


Sleeve Type: ‎Long Sleeve


Age Range (Description): ‎Adult


Size Map: ‎MT (6'1"-6'3", 160-180 lbs)


Global Trade Identification Number: ‎31


UPC: ‎191015080931


Item Package Dimensions L x W x H: ‎20.47 x 14.92 x 3.62 inches


Package Weight: ‎1.12 Kilograms


Item Dimensions LxWxH: ‎61 x 17.25 x 0.28 inches


Brand Name: ‎O'NEILL


Warranty Description: ‎LIMITED 1-YEAR WARRANTY Workmanship and Materials, 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


Model Name: ‎REACTOR-2


Suggested Users: ‎mens


Manufacturer: ‎O'Neill Wetsuits


Part Number: ‎5040


Style: ‎REACTOR-2 3/2MM BACK ZIP FULL WETSUIT


Included Components: ‎Wetsuits


Size: ‎Medium Tall


Date First Available: January 1, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 12

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great wetsuit, perfect fit, poorly packaged by Amazon
Color: Black/Black Size: 3X-Large
Review Image by Shirzzz Shirzzz
Amazon did a terrible job shipping this item. It likely has permanent creases from being bunched up in a bag. So, be warned, it's likely that you'll have similar issues; I suspect that warehouse associates don't know much about properly folding and shipping wetsuits. That said, this is a great wetsuit and a great value. It's very well made, comfortable, and a perfect fit. I'm a 6’1 Male, 248lbs, with relatively wide hips, which can make sizing a chore. I got the 3XL (based on their sizing guide) and it's a perfect fit. Definitely recommend the wetsuit, but I haven't decided if I should try and get a replacement that hasn't been aesthetically damaged. ... show more
Reviewed in the United States on January 26, 2023 by Shirzzz Shirzzz
    • 6’4 195 and LT fits like a glove
Color: Black/Black Size: Large Tall
Review Image by Alex R 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 Alex R
    • Good fit and value.
Color: Black/Slate Size: Large Tall
I was looking for an entry level wetsuit to water ski occasionally. Was unsure about size but finally went for a Large-Tall. It fits perfectly. For context I'm 6'1 (185cm) and 180 lb (82 kg) with a lean muscular fit. Was a bit worried it would be too long or to loose around the waist -happily that is not the case. I read in some reviews that ppl tend to go for wetsuits larger than needed. I also tried the MT and L (that friends have). The MT was a bit tighter but also fit well... I'm trying to put on some extra muscle mass which is why I went for the LT -If that's not a concern and you like a tighter fit then go for the MT. The L had shorter sleeves/legs but was also a good fit. At that point it really came down to the LT being on sale. ... show more
Reviewed in the United States on May 6, 2024 by Lucas
    • Good wetsuit. Came with a small tear in the neck.
Color: Black/Ocean Size: Medium
Review Image by Ian Fraser Ian Fraser
The wetsuit fits well, is comfortable and does the job in the water. It came with a small tear in the neck (see photo) so QC maybe be an issue. Overall this is a good wetsuit for the price point.
Reviewed in the United States on October 6, 2024 by Ian Fraser Ian Fraser
    • O’Neill 3/2 Wetsuit - it’s an excellent choice for its intended use
Color: Black/Black Size: XX-Large
Review Image by Roy Fine Roy Fine
Review Image by Roy Fine Roy Fine
Review Image by Roy Fine Roy Fine
Review Image by Roy Fine Roy Fine
Review Image by Roy Fine 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 Roy Fine
    • Comfortable
Color: Black/Ocean Size: Medium
Fit well and good quality product , don’t use it that often but I am satisfied with purchase as I usually use it to swim in cold day.
Reviewed in the United States on September 27, 2024 by Sameen Afridi
    • Suit Up and Dive In: O'Neill Men's Reactor-2 Wetsuit Feels Like a Cozy Coat in the Water!
Color: Black/Black Size: Large
The O'Neill Men's Reactor-2 3/2mm Back Zip Full Wetsuit is nothing short of amazing! It feels like wearing a warm, cozy coat while you’re in the water. This suit keeps your entire body warm and comfortable, making it perfect for extended sessions in chilly conditions. Not only does it provide excellent thermal protection, but it also offers remarkable flexibility. You can move freely and comfortably, whether you're paddling, diving, or swimming. The back zip design makes it easy to put on and take off, adding to the overall convenience. If you’re looking for a wetsuit that combines warmth with excellent mobility, this is the one to get. It’s a fantastic investment for anyone serious about staying warm and agile in the water. Highly recommend it for its comfort and performance! ... show more
Reviewed in the United States on September 13, 2024 by Han Shopped First
    • Great style however fit was too tight
Color: Black/Ocean Size: Medium
Quality seems to be much higher than rental wetsuits, and its price point gives breakeven of about 3-4 days rental. Men’s Sizing seems to correlate with Suit Jacket sizes (I’m a 42 regular) so men’s Large is best.
Reviewed in the United States on July 1, 2024 by WaltDizzy

Can't find a product?

Find it on Amazon first, then paste the link below.