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Speedo Quantum Jammer

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Product Rating   Product Rating  221 customer reviews|82% say true to size
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From $41.65 - $46.92
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From $31.24 - $35.19
SKU: 705648
Product Code: 970

Availability: Usually ships within 24 Hours
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    The Speedo Quantum Jammer is ideal for all your water activities. Whether you're recreational or competition swimming, its sleek look and comfortable fit will keep you going.

    Fabric & Care

    • 78% Antron™ Nylon / 22% Lycra™ Spandex.
    • Rinse after each use.
    • Machine wash low; hang to dry.


    • Sporty, contrast side splicing.
    • Jammer styling offers more coverage to the legs.
    • Reinforced seams.
    • Superior, chlorine-resistant fabric.
    • Imported.

    Sizing & Fit

    • 10'' inseam.
    • Front liner/gusset.
    • Non-slip drawstring at waist.


  • 4.5 star rating (221 Reviews)

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  • 9/26/2013 Wish it would have lasted longer.

    rating star By Christin H.

    I bought this for my 10 year old last year when he joined the swim team. It never faded or stretched out BUT, about halfway through the season on the butt seam there was a thin patch and eventually a see through circle about the size of a nickel. I hand washed it out right after he got home, no detergent, and no spin cycle. I wish it would have lasted longer being a Speedo and having paid a little more for it.

    Christin H.
    St Joseph, MI

    Size: Feels true to size

  • 8/15/2013 Jammers

    rating star By Bobbi S.

    The fit was good barely any wear after a whole summers use.

    Bobbi S.

  • 3/20/2015 great price; perfect fit

    rating star By Tom

    These trunks are perfect for my fitness swimming (3x/week).

    Wernersville, PA

    Size: Feels true to size

  • 9/26/2014 terrible

    rating star By Karen Anderson

    My son is a competitive swimmer and we have used lots of jammers over the years. This jammer fell apart in less than 1 month. I have never had that happen before. It was a waste of money. Don't recommend it.

    Karen Anderson
    Broken Arrow, OK

  • 3/19/2014 my son loves this suit

    rating star By prestons mom

    my son does summer swim team and loves the comfort of this bathing suit

    prestons mom
    Richmond, Va

    Size: Feels true to size

  • 3/18/2014 New Jammer

    rating star By egold

    After 40 years of Speedos the entire population thanks Speedo for making the Jammer. Seeing a 57 year old in a Speedo is not a pretty sight. The Jammer works just as well and I do not scare little kids and old ladies.


  • 3/5/2014 Speedo jammer

    rating star By LaureV

    The Speedo brand is always true to size and made of sturdier material than some of the other brands.  The material lasts much longer with regards to fading and stretching, especially when the kids are in the pool so much.

    Monroe, MI

    Size: Feels true to size

  • 12/9/2013 First Pair

    rating star By Jay H.

    This is my first pair of jammers. They are a bit tight on the lower leg but I have gotten used to that and it may very well be the intended design.

    Jay H.

    Size: Feels true to size

  • 11/7/2013 comfort

    rating star By swimgran

    My Grandson swims 5 nights a week, and Saturday meets, November thru March, these jammers have held up! I have ordered them for the last 3 swim seasons. I measure his waist and order that size, they fit well. The most important quality is their comfort, he is very sensitive to how seams feel. At first I got him a cheaper brand, the seams were somewhat raised, he couldn't stand them.  The seams on these don't bother him, they are very smooth and flat. The secret to keeping them nice is rinsing out in cool water to remove the chlorine right after swimming.


    Size: Feels true to size

  • 10/2/2013 solid suit for laps; sizing runs small

    rating star By Jonathan R.

    Once or twice a week I swim around 3,000 meters. I've been buying this suit for a few years now. It lasts about a year before needing replacement. Note that you should buy a size bigger than what you normally wear, i.e. if you're a 32 waist, get the 34.  It will still feel snug.

    Jonathan R.

    Size: Feels too small

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The world’s leading swimwear brand, Speedo is passionate about life in and around the water. The brand's heritage of innovation derives from its leadership in competitive swimming, where more Olympic Gold Medals have been won in Speedo than any other brand. Using the pioneering technology created for the planet’s top swimmers, Speedo brings performance, comfort and style to all who enter the water, whether racing for a record finish, swimming laps for better health or making memories at the beach.

Our Performance Collection includes the competition and training suits that remain the number one choice of the world’s fastest swimmers; our Fitness and Active Recreation Collections feature men’s and women’s swimwear, men’s water shorts, and kids swimwear in fashion-forward styles that are designed to perform. And with Speedo’s expanded range of Footwear, Packs, Aquatic Fitness and Swim Training Equipment, our Accessories Collection is unmatched in performance, fit and feel. No matter why you dive in – training, fitness or fun – those moments in the water are always better with Speedo.