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O'Neill Toddler 2mm Reactor Full Wetsuit

Product Rating   Product Rating  18 customer reviews|94% say true to size
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SKU: 4301
Product Code: 12139

Availability: Usually Ships in 24 Hours
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The O'Neill Toddler 2mm Reactor Full Wetsuit features a multisport design is versatile, durable, warm and best of all, affordable. Your little one will love wearing this comfortable wetsuit.


  • 100% Fluidflex: Highly stretchable neoprene with an ultra soft hand and lightweight material.
  • Body made with Fluid Foam: Highly durable neoprene that resists abrasion and compression with a supple feel and good stretch.
  • Knee made with abrasion resistant Kevlar.
  • Neck made with smooth skin fluid foam.
  • Top/undersleeve made with FluidFlex.
  • Chest/back made with smooth skin fluid foam.


  • Hidden key pocket.
  • Back zip system 10 YKK zipper.
  • Fully adjustable super seal neck with a 360 degree smooth skin interior, chafe-free unfinished edge and minimal bulk design
  • Krypto knee pads: Abrasion resistant, high stretch neoprene panel with ergonomic shaping for comfortable durability.
  • Strategic seamless paddle zones: Ergonomic, seamless undersleeve panel that allows unrestricted motion and eliminates rashing.
  • Flatlock stitching: Breathable, overlapping flatstitched seam that's non-chafing and super durable; ideal for warmer conditions.
  • Note: If in between sizes, please go up one size.

Also seen in:

Beach Shop
Surf Shop


  • 4.5 star rating (Based on 18 Reviews)
    94% of Fit Survey Respondents said this item "Feels true to size"
    6% of Fit Survey Respondents said this item "Feels too small"

    Write A Review
  • rating star
    By from
    on 4/27/2009
    Feels true to size

    We use this product so that our 7 yr. old son can swim in the water without turning blue.  This wetsuit worked miracles for him.  He no longer felt the coldness of the water and moves in his suit freely in the water.  He now enjoys swimming at the school swim program.  He looks forward to his class every week with no complaints.  He also loves how he looks and feels in it.  What a Godsend!!!!

  • rating star
    By from
    on 3/5/2015
    Feels true to size

    I bought this wetsuit for my 9 year old daughter to use for her swimming classes. It keeps her warm in the water for the full length of her class. She's a slim 9 year old, so size 6 fitted her perfectly. The material is very stretchy which enables her to do her strokes freely. Couldn't be more happy with the product.

  • rating star
    By from
    on 10/15/2012

    I bought this for my 16 month old and now she doesn't mind getting in and out of the pool.  This suit is amazing!!  Before buying this suit, my little one would be shaking uncontrollably and wanting to get out of the pool.  Now she wants to stay in.  When her swim lesson was over, I took the wetsuit off and her skin was actually warm.  I am in love!

  • rating star
    By from
    on 7/9/2012
    Feels true to size

    Our kids use these suits for swimming in our pool -temps around 72 to 76 F in late spring. Instead of only popping in for 10 minutes and coming out chattering. They spend an hour in the pool and we have to tell them to come out. One day they swam in the pool at 64!
    The wetsuits are good quality and lasting daily use without a problem after 2 months.

  • rating star
    By from
    on 6/20/2012
    Feels true to size

    I highly recommend this product to anyone who's child could use extra protection from the sun and cold. This wetsuit makes a world of a difference for my son.

  • rating star
    By from
    on 6/16/2012
    Feels true to size

    Use for indoor swimming lessons in unheated pool by my 3 year old. He would shiver so frantically and go blue, at one point I thought he would die from the cold.  I purchased a half suit first, but that one only helped somewhat he still shook too much for me to bear and he obviously couldn't enjoy or get much from the lessons being so cold.  Now he wears the Full Wetsuit, he has no shivering and has progressed dramatically in his swimming and enjoys it.  He loves the suit and so do I.  Very good buy and worth the comfort of not seeing him shiver in cold pain.

  • rating star
    By from
    on 5/30/2012
    Feels true to size

    I puurchased this suit for my 6yr old. When we go swimming he spends 95% of the time out of the water because he's always cold to the point where his lips turn blue. The first day he wore it he stayed in the water for 2hrs straight before getting out for a bathroom break. The only down side is that I noticed after his 5th time wearing it one of his pant leg rolls up that's ok its such a keeper.

  • rating star
    By from
    on 5/17/2012
    Feels true to size

    It's a wet suit that did it's job! Nice fit, appears well made.
    Shipping was right on time.

  • rating star
    By from
    on 5/14/2012
    Feels true to size

    I purchased this wet suit for my 18 month old sons first swim class along with the iplay swim diaiper which fits perfect underneath and a pair of water socks.
    The 2T fit is perfect for him at 31 inches, 23 pounds. There is about 2 inches to spare in the crotch and room for growth but the legs arent to long at all. It fits perfectly snug and it is SO EASY to get on an off even when wet.
    The pool is kept very cold, to cold for children his age per the instructor. The other kids are all in just trunks or rash guards. They get in the water and their lips turn blue, they cry and they shiver uncontrollably. My guy is without tears or blue lips and can focus on having fun thanks to this wet suit!!!!

  • rating star
    By from
    on 3/24/2012

    This wet suit keeps my toddler grandchild toasty warm.  She loves the pink color.  This is my second wet suit purchase and I will order more as she grows.  Thanks



Jack O'Neill began surfing in 1952, before functional surf apparel was invented. While working for the Army Air Corps, O'Neill discovered neoprene foam in a DC-3 airplane. He then combined the neoprene carpeting with duct tape to create the first neoprene wetsuit.

Demand for O'Neill's neoprene wetsuits grew rapidly and he began a business selling the O'Neill wetsuits out of his garage. By 1980, he was a leader in the beach apparel industry with a thriving business. Since then, O'Neill™ has become a widely recognized and respected brand in the surf industry, continually creating new and innovative products. In addition to O'Neill wetsuits, they carry O'Neill boardshorts, O'Neill dresses, O'Neill hats, O'Neill rash guards, O'Neill swimsuits, O'Neill water shoes, O'Neill sandals, O'Neill life jackets and O'Neill t-shirts.

In addition to his business success, O'Neill also created a non-profit foundation for kids. O'Neill developed the O'Neill Sea Odyssey Program: a free, educational cruise that introduces kids to the microbiology of the Monterey Bay Marine Sanctuary, beginning at Jack O'Neill's doorstep.