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Boy's Swim Shorts Jammer 500

Sale price: $19.99 Regular price:
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This product runs small

Sale price: $19.99 Regular price:

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Model: 8542211

Product Features

A photo of the Boy's Swim Shorts Jammer 500 in use

Boy's Swim Shorts Jammer 500 is designed for

The FITI BOXER 500 boy's swimsuit is perfect for fitness and cardio training. It stays in place no matter how hard you push, allowing you to achieve your goals

Chlorine resistant

more than 200 hours of use


Press flat against the skin and allow the swimmer to move without difficulty.

Freedom of movement

Good support thanks to the spandex-free elastic fabric.


Easy to adjust fit around waist thanks to the drawstring.

Product Lifestyle Image Gallery

Image Gallery

Boy's Swim Shorts Jammer 500,black 

Boy's Swim Shorts Jammer 500,black 

Boy's Swim Shorts Jammer 500,black

Product Customer Reviews

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Boy's Swim Shorts Jammer 500,black
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Great value for money

Great quality product. Just what we were looking for.

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Hi Natalie,

Thanks for your review! We are pleased you are happy with the price and quality of our product! Hopefully see you again soon.


jammers for teens

excellent quality. will definetly buy again...

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good quality

excellent price

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great quality

excellent value

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Very good quality good fit

Very good swim shorts good quality

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Excellent product

Excellent product

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great for the money

although they tend to come up small these are great value and have been perfect for the keen swimmer!

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Strings failed after first use

The condition of the pants and the top was terrible after first use in the pool. The strings and fabric started to frail.

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Hi Vignesh!

I am sorry to hear that you face some problems using the NAVY BLUE 500 BOYS' FIRST NAVY LAY 500 JAMMER SWIMSUIT.

This is the first time this product has a review with the following conditions that you mentioned above. It might be that you picked up a defective product off our shelves. 

I would like to invite you personally to any of our store outlets for a FREE exchange or refund for the product. If you require any assistance, you ca find me personally at Joo Koon Decathlon store and I will be able to assist you from there directly. 

Hoping to see you soon Vignesh.

Swimming Sports Advisor| Decathlon| Nabaiji| Joo Koon|Singapore
Swim jammer

My child loves it, i am not sure about durability as he has been using only for 3 weeks

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Nice swim shorts

Nice swim but as others have said they are on the small side. I realise they are meant to be close fitting swimmers but for the height/size I would have expected to fit I've had to return and go up from a size 12 to a 14. They were very very snug and would not have lasted very long. But the quality is good which is why I've returned and bought the larger size.

Club swimmer

Luck good,nice fit great price

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Very small

Bought age 8 for my slim 6 year old and they’re tiny. Look good quality though so I will return and try to swap for the age 10

Perfect fit for the kid

Good quality and perfect fit for the kid. Fully satisfied !

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Great buy

Great fit, good quality and very comfortable!

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Boys Jammers

I have a squad swimmer so his bathers get well, well used. These were a fantastic price, great quality, they look great and he absolutely loves them. Will definately be getting more on my next visit to Decathlon

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyester cationic

Main lining

  • 100% Polyamide


JAMMER – 13" long (in size 10 years) The JAMMER is ideal for anyone who wants to surpass themselves. A swimsuit should primarily favor comfort. It should enable you to move with ease. That's why it is important to choose the cut of your swimwear carefully.


Our engineers have developed a Polyester-based textile and replaced the spandex fibers with PBT fibers that give it sufficient elasticity to ensure user comfort while protecting it against the damaging effects of chlorine. The benefits of this PBT thread are - quick-drying. - only loses 3 to 4% resistance throughout its lifespan. - Even the brightest of colors will retain their colorfastness.

Aquaresist technology

Products bearing the AQUARESIST label are guaranteed to deliver chlorine-resistance throughout their lifespan. They will maintain their elasticity and are UV-resistant. For these reasons, they are recommended for regular or intensive pool use.


Swimwear intended for regular use.

Score to compare the environmental impact of products

The environmental impact of the product is calculated over its entire lifecycle and with different indicators. An overall score (ABCDE) is attributed to help you easily identify the products with the best environmental performance by comparing products of the same type with one another (T-shirts, pants, backpacks, etc.). Decathlon chose to apply this voluntary environmental labeling system. Website: Explanatory video:



Product testing

The products labeled with AQUARESIST certification are tested under repeated cyclical loading in a pool of chlorinated water for 240 hours. No deterioration of elastic strength was observed throughout the test. Unlike a standard swimming product, this product retains its shape.

Storage instructions

Store the swim shorts in a dry place.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual