Reactor II by O’Neill is one of the most popular surf wetsuits on the market. There are so many model variations for everyone out there. It’s a great spring/summer entry-level wetsuit that comes in many different shapes, sizes, and designs.
O’Neill is the oldest wetsuit manufacturers out there – well known for its large range of sizes and models at an affordable price tag. As the Reactor series is originally designed for such high activity-sport as surfing, many people also use it on all sorts of other water-related activities such as snorkeling, swimming, freediving, sailing, kayaking and so on.
Table of Contents
Why get an entry-level surf wetsuit? It’s an ideal choice for “Sunday surfers” or for any other warm-water activities. Don’t get me wrong – The Reactor is widely used among experienced surfers as well due to its’ simplicity and durability.
O’Neill O’Riginal – Awesome mid-range surf wetsuit
O’Neill Epic – Another great mid-range wetsuit by O’Neill
O’Neill Hyperfreak – Top-range O’Neil surf wetsuit full overview with all the models and sizes
O’Neill Psycho – Another awesome high-tech performance-driven wetsuit
O’Neill Reactor 2 Review
Reactor II is the updated version of the Reactor
Reactor II is engineered for performance in a value-driven package. A fresh combination of stretch and durability. Fresh colors and graphics with style that’s built to last.
- 1mm | 1.5mm | 2mm | 3/2
- Back-zip | Front-zip
- Top | Pull-Over Vest | Long-Sleeve Jacket | Shorts | Shorty | Long Jane | Long John | Full Suit
- UltraFlex/FluidFoam Neoprene Combination
- Mesh smooth skin
- Fluid foam chest & back
- Dry seal smooth skin
- Fluid foam neck
- Hidden key pocket
- YKK zip system
Washing instruction: Rinse with cool water and drip dry out of direct sunlight
- 100% UltraFlex DS neoprene
- High-performance super-stretch neoprene with a durable outer skin that resists velcro pulls and snags
- Stretch factor: 150% which means it stretches up to 1/3 out of its original fit for perfect fitment
- Flatlock stitched – The most popular method of sewn construction. The stitch uses 4 needles and 6 threads and works by overlapping the neoprene panels and sewing them together. It is a strong stitch and is very comfortable because it is flat, but it is not a sealed seam so it is not intended for extremely cold conditions.
- Strategic seamless paddle zones An ergonomic, seamless undersleeve panel that allows for unrestricted motion and eliminates rashing. Flexible and unique design that utilizes minimal seam placement for comfort.
- Krypto knee pads Abrasion resistant, high stretch neoprene panel with ergonomic shaping for comfortable durability. The flexible and unique design utilizes an extended knee pad for added durability.
Anywhere from $70 up to $200
O’Neill Reactor 2 CONS:
- The flatlock stitching lets water come through, but that’s expected to any suit with that type of stitching
- It’s an entry-level summer/springsuit with basic technology and limited thicknesses
Total Score: 4/5
What I personally like the most about the Reactor series is that it features a ton of different sizes for everyone – from toddlers, boys&girls, and up to men with a beer barrel. After reading a ton of reviews, most people find it very comfortable and well-fitting.
Key Factors When Choosing A Wetsuit
- TYPE – Determine which type of wetsuit do you need: A top, short sleeve top, or a full suit.
- THICKNESS – Choose the right thickness for the season.
- SIZE – Make sure you get exactly the right size. When you have to choose between two sizes, weight is more important!
Thickness & activity recommendations
- 1mm – Comfortable for summer use only
Snorkeling, Swimming, Kayaking, Surfing, Stand-Up Paddleboarding, Kiteboarding
- 1.5mm – Warm weather activities
Snorkeling, Swimming, Kayaking, Surfing, Stand-Up Paddleboarding, Kiteboarding, Sailing
- 2mm – Summer suit. An ideal choice for those in-between weathers where 1mm would be too cold and 3mm too restrictive. Perfect for freediving as it’s not that thick and floaty.
Snorkeling, Swimming, Kayaking, Surfing, Stand-Up Paddleboarding, Kiteboarding, Freediving, Diving, Sailing
- 3/2 – Springsuit. Great for those late spring/early autumn frisky sessions
O’Neill Reactor 2 For Men
Sizes from 168cm to 193cm / 5’6″ to 6’4″
52kg to 122kg / 115 lbs to 270lbs
Men’s O’Neill Reactor 2 Size Guide
O’Neill Reactor 2 for Women
Sizes from 155cm to 183cm / 5’1″ to 6’0″
40.75kg to 84kg / 90lbs to 185lbs
Women’s O’Neill Reactor Size Guide
O’Neill Reactor 2 Models for Youth
Sizes from from 2’10.5″ to 5’7″ / 87cm to 170cm
25lbs to 135 lbs / 11kg to 61kg
Youth’s O’Neill Reactor 2 Size Guide:
O’Neill Reactor 2 For Toddlers
Want your wetsuit to last? Check out our wetsuit care guide.
I created Nulltuul to share my experience, research and analysis with other surf enthusiasts out there. If I'm not surfing on my travels - I like to photograph waves, surfers, and the surf lifestyle in general.