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Boys Swimming Jammer - Black

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Regular price Regular price: $18.00 Sale price Regular price:

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Item: 2350618 - Model:

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A photo of the Boys Swimming Jammer - Black in use

Boys Swimming Jammer - Black
Designed for occasional swimmers who train less than once a week

Kids' jammer swim shorts at an unbeatable price.

Chlorine resistance

more than 100 hours of use: recommended for occasional use

Freedom of movement

The material’s elasticity guarantees good freedom of movement.


Easy to adjust fitting around waist thanks to its drawcord.


Product Reviews

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22 Reviews
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Rather small cut

We bought a 12yr old size for my 9 yr old boy(average size) but the cut was rather small as it’s very tight on the thighs where the seams are. Uncomfortable

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Hi Serene,

Thank you for your review of our One Boys' Jammer Swim Shorts - Black


We're sorry that this item did not meet your expectations.

I'll bring your feedback back to our design team to see how we can improve the fabric in our future designs.

Thank you & sport on safely! :)


Sports Leader of Surfing, Paddle Sports

Good swim jammers

These are smaller cut, so make sure to buy a size up. Good price point and easy wash and wear. Good for training swimmers. At this price, you can get two.

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Very comfortable

my kid love it, he is a very demanding child but he never complained abt it. and the price is cheap, will buy again

Sze Ching
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Hello Sze Ching!

Thank you for taking the time to review our products. We are pleased to hear that you enjoy using this ONE BOYS' JAMMER SWIM SHORTS - BLACK!

Yes! These Jammers are valued at a affordable price as they are designed for occasional swimmers hence, comfortability and stretch properties. :) For regular or intensive pool use, feel free to explore our intermediate range of Jammers here as they are designed with Aquaresist properties that are guaranteed to deliver chorine resistance and maintain elasticity.

Additionally, You may complement the Jammers with our UV tops that are designed with fabric that consist UV Resistant, UPF 50+ as well as seamless panels under the arms to limit irritation to avoid Chafing or you may head down to our experience stores to try them out first hand. :)


Nur Farishah

Omni-Channel Sports Advisor

Swimming dress

Good product

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Very soft and good to wear at the time of Yoga


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The product and staff service is good

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Hello Choe!

Thank you for taking time to give us a review on our swimming apperal.

Yes, designed for occasional children swimmers as it is very comfortable and soft with excellent stretch properties, perfect for repeated uses in the swimming pool. The elastane fibre that gives the material its stretch properties and therefore makes it comfortable is also fragile when in contact with chlorine.

Hope to hear another review from you again for our other products. Thank you and have a nice day ahead! :)

Stay healthy, by being sporty!
Syahmi Jalil | Sports Advisor @ Decathlon Singapore Lab

Very great do quality.

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Right price with good quality

Trusted brand name with better service

Mangal Ram
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V nice to have a product

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Good quality product

Seems little expensive but overall material quality is good and satisfactory. Just to keep in mind about the price as lot of Indian customers used to compare with other websites and stores.

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Swimming trunks for kids

Good value for growing kids. Comfortable material, durable and my kid likes it.

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Hi Madam Lim!

Thank you for your fantastic feedback for our One Boy's Jammer Swim Shorts - Black!

I'm glad that your son likes it! Do you know the jammer shorts provides comfort, support and 'body-reshaping' for young swimmers? In other words, it's material acts like a "second-skin" as it hugs the thigh nicely to give you comfort as it's really flexible. This way, your son would be able to swim freely without any distractions and with full focus in the water. 

See you around soon Madam Lim!


Swimming Sports Advisor | Decathlon | Nabaiji | Joo Koon
Great swim shorts

I brought these swim shorts for my 6 year old. He's love happy with them, they do the job.

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Swim Shorts - Black

best product at reasonable price ..keep it up decathlon ..

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Very happy with the hammer. Had bought one before.

Very very happy with the.product

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Product information


Main fabric

  • 18% Elasthane
  • 82% Polyamide

Main lining

  • 100% Polyester


JAMMER – length 33 cm in size 10 yearsA swimsuit should primarily favour comfort. It should enable you to move with ease. That is why it is important to choose the shape of your swimwear carefully.The Jammer provides great muscle compression for the quads and glutes, resulting in the perfect fit.


Main fabric: 80.0% Polyamide, 20.0% Elastane.Very comfortable and soft with excellent stretch propertiesChlorinated water can be harmful to swimsuits which are used repeatedly in the swimming pool. The elastane fibre that gives the material its stretch properties and therefore makes it comfortable is also fragile when in contact with chlorine.If you swim occasionally this material will be fine for you, otherwise opt for a 100% polyester material.

Score to compare the environmental impact of products

The environmental impact of the product is calculated over its entire life cycle 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, trousers, backpacks, etc.).Decathlon chose to apply this voluntary environmental labelling scheme.Website:sustainability.decathlon.comExplanatory video:


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