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Speedo Nemesis Fins

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Product Rating   Product Rating  14 customer reviews|93% say true to size
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SKU: 7530479
Product Code: 8114622

Availability: Usually Ships in 24 Hours
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Labeled as the most comfortable fin on the market, the Speedo Nemesis Fins feature ergonomic foot pockets and floating properties to elevate the hips and feet into an improved streamlined body position.


Awarded Gear of the Show at Summer Outdoor Retailer 2014.


  • Scalloped outer edges creates greater surface area for water to pass over, allowing the swimmer to push more water during kicking drills and training sets.

Blow Valves

  • Medial edge openings create a valve effect, in which water is captured on the underside and forced through the smaller opening. More resistance is created on the down-kick.

Flow Channels

  • Channels at the top and bottom of the fins help guide water in the proper direction which helps rotate the foot into the correct orientation for maximum kick efficiency.

Injection Molded EVA (IMEVA) Foam

  • IMEVA fins are naturally buoyant, aiding the swimmer with an elevated body position, keeping hips and feet in a more streamline position.

Unparalleled Comfort

  • Arch support.
  • More toe space to prevent pinching and cramping.
  • Security at the heel joint.
  • Graduated instep for excellent fitting across the mid-foot.

Heel Straps

  • Unique under-heel strap provides extra stability.

Integrated Grab Hole

  • Incorporated finger hole on top of fin for ease of getting the fin on the foot.


  • Sizing correlates with shoe size in the drop down menu.


For more information on swim fins, read How to Choose Swim Fins.

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  • 3.5 star rating (14 Reviews)

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  • rating star
    By from
    on 10/24/2014
    Feels true to size

    Decided to try the new fins for my son who is a competitive swimmer and trains 6 days a week.  His feedback is that they feel great underwater but he doesn't like them for kick board sets.  Not enough propulsion on the water surface kicks.  Says he would've preferred the ordinary plain fins.

  • rating star
    By from
    on 10/10/2014
    Feels true to size

    Haven't had a chance to use the fins.  That will happen in November

  • rating star
    By from
    on 9/20/2014
    Feels true to size

    So I was looking for some training fins to strengthen my kick.  I have a weak kick.  I knew the training ones made by Finis are very well liked to do just that.  Once I read about the theory behind these I thought worth trying.  I like them.  Although, they dont give the same type of resistance which does not quite give your legs the same type of workout.  Your kick has to change to more of a diving kick which defeats the purpose of them used for "training"  Otherwise, they are light and a whole lot of fun.  One thing they did get absolutely right it how they fit on your foot.  It that way they are so much better that any of the others.  In the end, fun, light, floats, very good fit.  Not quite a "training" fin and not quite a diving fin.

  • rating star
    By from
    on 9/18/2014
    Feels true to size

    I swam competitively for 9 years, and this is a very comfortable fin. The variation in length from one side to the other will turn your toes in, and the push back in the water will increase ankle flexibility. Great for getting quickly to the burn in training. I was worried they would be tight in the toe area, but that is not an issue at all.

  • rating star
    By from
    on 3/30/2015
    Feels too big

    It's a very lightweight fin with a soft touch feel and is comfortable to use.  The size does run a little big.  After only 4 uses a heel strap broke. I have had fins last for a couple of years in my swim class and was disappointed in this fin.

  • rating star
    By from
    on 3/6/2015
    Feels true to size

    Very light and fast!

  • rating star
    By from
    on 2/27/2015
    Feels true to size

    bought these swim fins for my fiance who is a swim coach and a swimming teacher.  She really likes them.  Recommend them for training and advanced swimming levels.  They increase your work-out level and strength but make you use proper kicking techniques.  Bad point is they don't fit me (too small) as I am a Men's 10-11.

  • rating star
    By from
    on 2/20/2015
    Feels true to size

    This fin flexes too much at the end of my foot. I think a simple redesign would fix this issue.

  • rating star
    By from
    on 1/27/2015
    Feels true to size

    I bought for ,y 11 year old, who is a very good competitive swimmer. He loved the fit and the comfort.... But the fins are so light that his feet came way out of the water. Several team members tried them and had same conclusion

  • rating star
    By from
    on 12/15/2014
    Feels true to size

    weird design puts pressure on the bottom of the foot midway between the toe and heel.  that leads to cramping.  maybe as my foot gets used to it the cramp will subside.  right now i'm not a fan.



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.