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Image for LZR Racer X Jammer from Speedo USA
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Size Chart
Product Details+
  • FINA Approved.
  • Dual fabric construction, which offers higher levels of compression, combined with increased freedom of movement.
  • LZR Racer Pulselite light, powerful & durable fabric.
  • LZR Racer Comprex one way stretch for higher compression.
  • Maximized support seam construction improves the linkage of the muscular kinetic chain.
  • Fully bonded seams.
  • Fabric: 65% Nylon/35% LYCRA® Spandex.
In Stock
Leaves warehouse in 1-2 full business days

Our most advanced racing system yet

The Journey of Development

The Speedo Aqualab team carried out extensive 3D scanning of elite athletes all over the world, running computer simulations of athletes' shape, conducting research and calculations on drag and resistance, and thoroughly testing theories, findings and technologies.

4x Traveled around the world, 330 World class swimmers giving input, 20 Swimming experts from 28 countries, 10,000 Hours spent in product development 4x Traveled around the world, 330 World class swimmers giving input, 20 Swimming experts from 28 countries, 10,000 Hours spent in product development

Key Benefits

Higher
Compression

Reducing drag but increasing the muscles efficiency.

LZR Racer CompreX uses one way stretch technology, stretching vertically, allowing swimmers freedom of movement during their stroke. It is resistant to horizontal stretch providing high compression and reducing drag but increasing the muscles efficiency.

Maximized Support Seam Construction

Improving the linkage of the muscular kinetic chain.

The support seams enhance the link between muscles of the upper and lower body. They connect major muscles of the thigh, back and shoulders.

The support seam intersects at the hip bone, allowing rotation, then runs across the lower back with an identifiable ‘X’ shape. The construction of the seams provides feedback to the swimmer, helping to maintain a better position in the water and a high-leg kick.

Ready for Competition

Developed by Speedo Aqualab Fina Approved
KEY FEATURES
Fina Approved

Fina Approved

This item is approved and meets all FINA regulations for competition.

aqualab

aqualab

Researchers from Aqualab work with experts from diverse industries and the world's top athletes and coaches to pioneer technological advancement in the sport of swimming.

CUSTOMER REVIEWS QUESTIONS & ANSWERS

Customer Ratings and Reviews:

SpeedoLZR Racer X Jammer
 
3.4

(Based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

57%

of respondents would recommend this to a friend.

Pros

  • Quality materials (6)
  • Comfortable (4)
  • Well made (4)

Cons

  • Irregular fit (3)

Best Uses

No Best Uses
    • Sizing:
    • Feels too small

       

      50% 

      (3 reviews)

      Feels true to size

       

      Feels too large

       
    • Was this a gift?:
    • No (5)

Reviewed by 8 customers

Displaying reviews 1-8

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(1 of 1 customers found this review helpful)

 
3.0

Sizing chart is WRONG

Profile Image

By 

from illinois

Verified Reviewer

Pros

  • Comfortable
  • Figure Flattering
  • Quality Materials

Cons

  • Irregular Fit

Best Uses

    Comments about Speedo LZR Racer X Jammer:

    I'm confused as to the reviews posted. All say the sizing chart is wrong, 1/2 say they are too big and 1/2 say they are too small. I also measured meticulously, chatted with the speedo people online and still got it wrong. My 11 year old son, who normally wears a 26 in tech suits, was supposed to get a 28. I didn't feel right about this, so I ordered the 26 and it was still too big. I should have gotten him a 24. I definitely feel that the suits are sized to big. If people are feeling that they are sized small, then the suits are just not consistently sized, which is frustrating.

    • Sizing:
    • Feels too large

    (2 of 2 customers found this review helpful)

     
    4.0

    Top Review

    By 

    from Greensboro, NC

    Pros

    • Comfortable
    • Well Made

    Cons

      Best Uses

        Comments about Speedo LZR Racer X Jammer:

        Do NOT listen to the top comment. I am 6'2, 210 pounds and wear a 25. There is no way a 147 pound kid wears a 26, and if he does it is way too loose.

        • Sizing:
        • Feels true to size

        (0 of 1 customers found this review helpful)

         
        3.0

        Size charts are not accurate for this suit.

        By 

        from Hibbing, MN

        Verified Buyer

        Pros

        • Quality Materials

        Cons

        • Irregular Fit
        • Size Charts Are Off

        Best Uses

        • Championship Racing

        Comments about Speedo LZR Racer X Jammer:

        Purchased for son's HS Section Champs. I followed the size recommendation and measuring guidelines meticulously. I ordered the "larger" of 2 sizes suggested. The suit was so tight that he could barely get it on. He could feel the compression work AGAINST him during his race, as the X simply could not be worked up to the proper hinge position. Would suggest Speedo show side-by-side comparison of the same model wearing regular and high-waist model. This barely covered. I would not order another online.

        • Sizing:
        • Feels too small
        • Comfort vs Style:
        • Style Driven
        • Was this a gift?:
        • Yes
         
        3.0

        Size chart does not seem to be accurate for this suit

        By 

        from Hibbing, MN

        Pros

        • Comfortable
        • Quality Materials
        • Well Made

        Cons

        • Sizing A Problem

        Best Uses

        • Racing Section Finals

        Comments about Speedo LZR Racer X Jammer:

        I bought this suit for my son to wear in his Varsity Section Swim Meet. Due to the high cost of the suit, I was meticulous at following the directions on Speedo's size chart for measuring both the waist and hip. For his measurements it was recommended that he either wear a 22 or 23. I ordered the larger size as some reviewers indicated that it runs a bit small. This was an understatement. I should have had him try it on when it arrived. The suit was so small that it took close to an hour to get on. In retrospect he probably should have had several sizes larger. We believe the "X" may not have been positioned properly due to the small size of the suit, and he could feel that he was working against the compression in his freestyle sprints. There should be a side-by-side comparison photo to show the "regular" vs. "high waist".

        • Sizing:
        • Feels too small
        • Was this a gift?:
        • No

        (1 of 2 customers found this review helpful)

         
        4.0

        Great suit

        By 

        from Wallkill, NY

        Pros

        • Quality Materials

        Cons

          Best Uses

            Comments about Speedo LZR Racer X Jammer:

            This is a fantastic suit for competition, however, do NOT use the size chart! My son is 6'1" and 147 lbs. He normally wears a size 32 in a regular speedo suit. According to speedo's size chart (based on various measurements) he would wear a size 22 in this suit. We went with a 26 and it fit perfectly. Several boys on his team had to return their suits because they were way too small (they had used the size chart too). Again, it is a great suit, just order a few sizes down from your normal size.

            • Was this a gift?:
            • No

            (1 of 6 customers found this review helpful)

             
            1.0

            No Thanks. Even at 1/2 off this suit is overrated

            By 

            from Irvine, CA

            Pros

              Cons

              • Irregular Fit

              Best Uses

                Comments about Speedo LZR Racer X Jammer:

                Not for young swimmers. They should not try to sell this suit to anyone but muscular high school students or older. My son usually wears a size 26 in the Elite Pro. As soon as he got in the water he could tell the suit had no compression and the tape at the knee didn't even fit tight. One race and he refuses to wear it. Very disappointing for the price. Even going down to the 25 didn't help.

                • Was this a gift?:
                • No

                (2 of 2 customers found this review helpful)

                 
                5.0

                LZR Racer X

                By 

                from Flagstaff Arizona

                Pros

                • Quality Materials
                • Well Made
                • Wrinkle Resistant

                Cons

                  Best Uses

                  • Races

                  Comments about Speedo LZR Racer X Jammer:

                  This suit felt absolutely amazing! Ive had several fast suits but this one was by far the best. As soon as I dove in i could feel the compression. I would suggest this suit over any other competing suit, because in my eyes there is no competitor.

                  • Sizing:
                  • Feels true to size
                  • Was this a gift?:
                  • No

                  (7 of 10 customers found this review helpful)

                   
                  4.0

                  amazing suit! sizing sucks! do not buy unless you try on!

                  By 

                  from Salmon arm Brisitsh Colombu=ia

                  Pros

                  • Comfortable
                  • Quality Materials
                  • Well Made
                  • Wrinkle Resistant

                  Cons

                  • Can't Use The Sizing Chrt
                  • Sizing is wrong

                  Best Uses

                  • Competition

                  Comments about Speedo LZR Racer X Jammer:

                  great product but when yoyo go with the size that meets how you measured its wrong in so many ways i had to go up t full sizes just to get the suit on! and even then it has the max compression you would want

                  • Sizing:
                  • Feels too small
                  • Was this a gift?:
                  • No

                  Displaying reviews 1-8

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                  Do you have questions about this product?

                  Get answers from real customers and in-house experts with AnswerBox.

                  7 Questions | 7 Answers
                  Displaying questions 1-7
                  • Q:

                    how to care for this product in order for it to last longer?
                    Asked on 12/22/2015 by piggy

                    1 answer

                    • Staff Reviewer

                      A:

                      For best results rise the suit in cold water, lay flat to dry and store in an airy location.

                      Answered on 2/5/2016 by Speedo USA from Los Angeles
                  • Q:

                    is the LZR Racer X jammer only a high waist design?
                    Asked on 12/14/2015 by Steve

                    1 answer

                    • Staff Reviewer

                      A:

                      The LZR Racer X Jammer is available in both regular and high waist.

                      Answered on 2/5/2016 by Speedo USA from Los Angeles
                  • Q:

                    How does the this suit with feel during breaststroke? does it allow for full range of motionin the legs?
                    Asked on 11/30/2015 by Brian Sackett

                    1 answer

                    • Staff Reviewer

                      A:

                      We have found that the rigidness the High Waist Jammer provides through the waist is best for Free, Back and Fly; Breaststrokers feel it inhibits the hinge at the hips.

                      Answered on 2/5/2016 by Speedo USA from Los Angeles
                  • Q:

                    What is the Materials of the LZR Racer X
                    Asked on 11/23/2015 by Backstroker

                    1 answer

                    • Staff Reviewer

                      A:

                      The LZR Racer X Jammer is made from 65% Nylon/35% LYCRA® Spandex.

                      Answered on 1/11/2016 by Speedo USA from Los Angeles
                  • Q:

                    I am primarily a breastroker. Would you recommend this suit or something else in my case?
                    Asked on 11/4/2015 by Thomas

                    1 answer

                    • Staff Reviewer

                      A:

                      Thomas - We have found that the rigidness the High Waist Jammer provides through the waist is best for Free, Back and Fly; Breaststrokers feel it inhibits the hinge at the hips.

                      Answered on 11/9/2015 by Speedo USA from Los Angeles
                  • Q:

                    How does the water repellency of the LZR X compare to that of the LZR Racer Elite 2
                    Asked on 8/6/2015 by mike the sprinter

                    1 answer

                    • Staff Reviewer

                      A:

                      Mike the sprinter - the water repellency of the LZR X and the LZR Racer Elite 2 are similar.

                      Answered on 9/8/2015 by Speedo USA from Los Angeles
                  • Q:

                    Can the LZR Racer X Jammer be returned if the size I order does not fit? I did not see any specific exclusions for this product.
                    Asked on 7/20/2015 by Curious Casey from Bloomington, IL

                    1 answer

                    • Staff Reviewer

                      A:

                      Yes, Please note, this return policy only applies to products purchased from SpeedoUSA.com. If for any reason you are dissatisfied with your purchase, we'll assist you with a prompt refund. Returns are accepted up to 90 days from purchase date. The item must be returned in good condition, in original boxes (whenever possible), and with all paperwork, parts and accessories to ensure credit. Unfortunately, we do not accept exchanges at this time. If you wish to exchange an item, you must return the item by following the Return Instructions on the packing slip and re-order a new item at SpeedoUSA.com.

                      Answered on 7/22/2015 by Speedo USA from Los Angeles
                  Displaying questions 1-7

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