O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit
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O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit

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The O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit combines high performance layering and... Read More
SKU: 5041 Product Code: 8167778

Product Details

  • Also seen in:

    Beach Shop
    Surf Shop

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    The O'Neill Men's 2MM Reactor II Back Zip Short Sleeve Spring Suit combines high performance layering and FluidFlex™ material for ultimate warmth that maintains stretch for great flexiblity in and out of the water.


    • 100% Neoprene.


    • Top sleeve / Under sleeve: FluidFlex™.
    • Chest / Back: Mesh Smoothskin fluid foam.
    • Kyrpto Knee Padz for ergonomic knee protection.
    • Smoothskin fluid foam neck.
    • 30% FluidFlex™ / 70% fluid foam.
    • YKK back system.
    • Hidden key pocket.
    • Flatlock stitched seams for breathability.
    • Strategic seamless paddle zones.

    Sizing & Fit

    • Back zip.

    Country of Origin

    • Imported.

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  • 4.5 Review Stars (12 Reviews)

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    See all 12 customer reviews
  • 2/10/2021 It fits

    5 Review Stars By Rc

    It fits great. I’m glad I didn’t  get an xxl.


    Fit: Feels true to size

  • 4/17/2018 Fits Tall Athletic build

    5 Review Stars By Tallguy

    I am 6'7" and 200 lbs. I used size Large Tall and it fits perfect. The closed collar takes some getting used to.

    Flyover Missouri

    Fit: Feels true to size

  • 1/27/2021 Perfect Wetsuit ~ ~ ~

    5 Review Stars By Makai

    Use this wetsuit for winter swimming in pools. It is just the right thickness, and allows for free movement for lap swimming. Good price for a hard to find wetsuit in the winter months ~ ~ ~

    Petaluma, Ca

    Fit: Feels true to size

  • 8/1/2018 Good suit for the price

    4 Review Stars By Pete

    This suit kept me warm in Lake Michigan, no small feat. I was pleased to learn that the sleeves aren't restrictive when swimming.

    Milwaukee, WI

    Fit: Feels true to size

  • 11/30/2020 Excellent choice for outdoor lap swim

    4 Review Stars By DC

    This spring suit has made sustained outdoor lap swim possible and comfortable despite the cooler weather and occasional rain. It is manageable to get on without help providing you tug on the collar behind the neck to align the zipper before pulling on the ribbon. It's very comfortable in the water, not restrictive at all and I' not had any chafing. Not giving it 5 stars only because of the Velcro at the collar: it's tricky to get exactly the right closure to prevent water from entering and settling between my shoulder blades. For the money it's a great value and I would buy it again.

    Lafayette, CA

    Fit: Feels true to size

  • 7/3/2020 Good quality, unique sizes available

    5 Review Stars By adrenaline

    It's a thin spring suit, so keep that in mind. The insulation helps but the black color also helps. One great thing about these spring suits is that they have more than the normal sizes available so that you can get a good fit.

    Huntington Beach, California

    Fit: Feels true to size

  • 4/28/2020 Nice fitting, relatively easy to swim in.

    4 Review Stars By Kevin

    A little bit of water get's into the front when swimming but mostly that can be avoided by keeping the neck fastener tight.

    New Mexico

    Fit: Feels true to size

  • 4/5/2020 Good Product at a Great Price

    5 Review Stars By Alex

    After trying on several suits, this was a perfect fit. Looking forward to a good season of Jet skiing with it!!

    Rutherford, NJ

    Fit: Feels true to size

  • 3/30/2020 Quality is good but...

    3 Review Stars By Bill Colohan

    For me to stay warm I need a long sleeve springsuit. Water comes in on all wetsuits but in order to stay warm the water needs to be trapped so it can heat up to body temperature. This doesn't happen with a short sleeve suit.

    Bill Colohan
    Cincinnati Ohio

  • 9/16/2019 Wetsuit

    5 Review Stars By Dennis

    This wetsuit gave me a wedge that wouldn’t quit. The size seemed find but the material rode up a little too much in the buttocks.

    Worthington, Ohio

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About This Brand


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.