O'Neill Reactor 2mm Spring Suit

O'Neill Reactor 2mm Spring Suit 4 5 5
SKU: ONL3799
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Availability: In stock

Regular Price: $89.95


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No Hassle 30 Day Return Policy. Doesn't fit? Don't like it? Return it.

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Family Owned Since 1980. Online since 1999.



With the O'Neill Reactor Spring Suit you get a full dose of wetsuit technology at an incredible value. The Reactor Series utilizes O'Neill's exclusive FluidFlex in the shoulder and sleeves with Fluid Foam neoprene throughout the body. Mesh Smooth Skin Chest and Back Panels provide warmth by absorbing sunlight and trapping in the heat while a fully adjustable super seal neck keeps your fit snug and comfy. Check out the Reactor for cool to warm water surfing, windy days at the lake or any fun times in the water.


Thickness: 2mm

Neoprene: FluidFlex/Fluid Foam

Seams: Flatloc Stitch

Zipper: Back Zip

Hood: None

Model Year: 2015/2016

Manufactures Part Number: 3799


Product Features

  • FluidFlex Neoprene: O'Neill’s exclusive ultra soft and lightweight neoprene.
  • Fluid Foam Neoprene: Highly durable lightweight neoprene.
  • Mesh Smooth Skin Chest and Back Panels: Wind resistant panels that keep the chill out and trap the heat in.
  • Single Superseal Neck: A fully adjustable closure featuring a 360 smooth skin interior, chafe-free unfinished edge, and minimal bulk design.
  • Flatloc Stitch Construction: A breathable, overlapping flatstitched seam. Non-chaffing and super durable.
  • Seamless Paddle Zones Underarm: An ergonomic, seamless undersleeve panel that allows for unrestricted motion and eliminates rashing.
  • #10 YKK Back Zip: Heavy duty easy glide back entry zipper that reduces water entry.


O'Neill Reactor 2mm Spring Suit niceReview by max max
nice suit, perfect fit in chest & arms, i haven't any problems with quality. great service. really great.
(Posted on 5/9/2016) 2016-05-09
O'Neill Reactor 2mm Spring Suit Great service, great suitReview by smv smv
This is a great suit and the service was great. My only 2 minor complaints are that the suit was not as advertised in colors. For example the colors on the logo in front and on the sleeve were just plain grey, not as shown in the pictures ( Grey and blue) to match the overall color combination I bought. Also a bit expensive, $15 more, as I found the exact same suit in O'neill retail store at $75 and so is the online price at Oneill's web store as well... Other than that its great!
(Posted on 9/7/2015) 2015-09-07
O'Neill Reactor 2mm Spring Suit great wetsuitReview by mike hee mike hee
I am very satisfied with my new O'Neil Reactor spring wetsuit. I have been using O'Neil wetsuits for over 25 years and their quality is superb. I was also very satisfied with purchasing my wetsui from Cleanline surf. I live on Oahu and my wetsuit arrived on schedule and Josh and the crew aslo wrote me a little note about how lucky i was to live in Hawaii nice weather all year round. They also thanked me for purchasing my wetsuit from their shop. mike hee
(Posted on 2/24/2015) 2015-02-24
O'Neill Reactor 2mm Spring Suit Spend more for better qualityReview by Azel Azel
Worst wetsuit I have ever had. The wetsuit has put me off oneill. Rashes under both arm pits and crotch would ride up. The stitching under the armpit was dodgy which caused the problem. As for cleanline great service, I also bought a steamer which was great with quick postage and great prices
(Posted on 9/21/2014) 2014-09-21
O'Neill Reactor 2mm Spring Suit Great Suit, Great ServiceReview by Unknown Unknown
Good suit, was out in and out of the ocean (57 degrees) for an hour + and was perfect, not too hot, not too cold. Cleanline has awesome service, good people, good products, looking out for customers best interest, definitely will do business here again.
(Posted on 6/20/2013) 2013-06-20

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Size Chart

The staff at Cleanline Surf specialize in sizing O'Neill Wetsuits. If you have never tried an O'Neill suit before, we strongly urge you to call us for expert advice on sizing. We do have a size chart available below, but please take it with a grain of salt. For the perfect fit the first time please call and speak with one of our wetsuit experts.

2XS5′6″-5′8″115-130 lbs32.5-34.5″27-29″
XS5′7″-5′9″125-140 lbs34.5-36.5″28-30″
S5′8″-5′10″135-155 lbs36.5-38.5″29-31″
ST6′0″-6′2″145-165 lbs36.5-38.5″29-31″
M5′9″-5′11″150-170 lbs38.5-40.5″30.5-32.5″
MS5′6.5″-5′8.5″140-160 lbs38.5-40.5″30.5-32.5″
MT6′1″-6′3″160-180 lbs38.5-40.5″30.5-32.5″
L5′10″-6′0″170-190 lbs40.5-42.5″32.5-34.5″
LS5′7.5″-5′9.5″160-180 lbs40.5-42.5″32.5-34.5″
LT6′2″-6′4″180-200 lbs40.5-42.5″32.5-34.5″
XL5′11′-6′1″190-210 lbs42.5-44.5″34.5-36.5″
XLS5′8.5″-5′10.5″180-200 lbs42.5-44.5″34.5-36.5″
XLT6′3″-6′5″200-220 lbs42.5-44.5″34.5-36.5″
2XL6′0″-6′2″210-230 lbs44.5-46.5″36.5-38.5″
3XL6′0″-6′2″230-250 lbs47.5-49.5″38.5-43.5″

Full O’Neill Wetsuit Sizing Chart



If the product is found to be defective under normal use and proper care, O'Neill will repair or replace the product at our sole discretion. The decision to replace or repair a product is made by the O'Neill Warranty Department after receipt of the defective product. At no time does the O'Neill offer refunds. Defective product should be returned clean and dry, postage prepaid. Please include a note with product description, product defects, requested action, return address (be sure to include postal code, especially for Canadian addresses), daytime phone number with area code, customers name and a copy of the purchase receipt sent to the address below.

Suits without a copy of the purchase receipt will NOT BE COVERED UNDER WARRANTY.


  • Products classified as seconds
  • Fading from sunlight
  • Alterations
  • Materials over 1 year (from date of original purchase), or 90 days for accessories
  • Repairs or alterations done by anyone other than O'Neill or an O'Neill authorized repair facility
  • Warranty request without original receipt


Flat-Stitched Products, Glued and Blindstitched Products, and Fluid Seam Weld Products

  • Limited 1-year warranty (from date of original purchase) on workmanship and materials.

Neoprene Dry Suits

  • Limited 1-year warranty (from date of original purchase) on workman ship and materials (waterproof zipper excluded)


  • Limited 90-day (from date of original purchase) warranty on workmanship and materials


For repairs received from the dealer or end user, O'Neill offers:

  • 10 Business Day Turnaround for warranty Stitched Suits
  • 10 Business Day Turnaround for warranty Glued Suits
  • 20 Business Day Turnaround for warranty Fluid Seam Welded Suits
  • 30 Business Day Turnaround for all Non-Warranty Repairs

Repairs are to be returned clean and dry, postage paid. Please include the name and a daytime phone number with area code, return address, product description, and requested action.

Send Repairs To:

O'Neill U.S. Warranty Repair
1022 Bay Marina Drive, Suite 140B
National City, CA 91950
Tel: 1-800-331-1637


Returns are easy! We understand that in some situations returns or exchanges may be necessary. We also want you to be stoked on your purchase. If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order. Items must be in new condition with original tags and packaging.

Click here for our full Return Policy