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Men’s Swimming Long Boxer Shorts 500

Sale price: $20.00 Regular price: $29.99

Sick of swimsuits that don’t cover enough? Extended with style and boldness, the LONG boxer 500 with its high chlorine resistance is the solution to guarantee excellent support while swimming.

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Size: Select a size
Size Guide

This product runs small

Sale price: $20.00 Regular price: $29.99

Free shipping over $35

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8361311

Product Features

A photo of the Men’s Swimming Long Boxer Shorts 500 in use

Men’s Swimming Long Boxer Shorts 500 | Our design teams have developed these long swimming boxers exclusively for intermediate swimmers wanting to improve their technique and physique.

Sick of swimsuits that don’t cover enough? Extended with style and boldness, the LONG boxer 500 with its high chlorine resistance is the solution to guarantee excellent support while swimming.

Chlorine resistant

Benefit from AQUARESIST components for over 200 hrs in chlorinated water.


Benefit from excellent support from the spandex-free elastic fabric.

Freedom of movement

Adjust them easily at your waist via the drawstring with no end pieces.


Easy to adjust fit around waist thanks to the drawstring.

Product Lifestyle Image Gallery

Image Gallery

Men’s Swimming Long Boxer Shorts 500,blue / red 

Men’s Swimming Long Boxer Shorts 500,blue / red 

Men’s Swimming Long Boxer Shorts 500,blue / red 

Men’s Swimming Long Boxer Shorts 500,blue / red 

Men’s Swimming Long Boxer Shorts 500,blue / red

Product Customer Reviews

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Men’s Swimming Long Boxer Shorts 500,blue / red
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Solid swimmers

Really comfortable and durable.

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Lap swimmer

As a lap swimmer prevents chaffing of the legs.

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Material is of poor quality

No value for money

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Great swimsuit

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Hi Greg,

Thank you for the 5-star review on these swimsuits! :)

Swim suit for training

So far the product is what I expected, but I have bought this one week ago, we will see if after several weeks still in good condition.

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Swim Shorts.

Like better than the shorter shorts. Perfect in the pool.

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good product

fits good and better than other product

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Not worn yet but I have confidence in there produc

Get some 🙍🏼‍♂️

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Great fit comfortable and good looking .

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20 7 2021

Best pair I have ever had

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Excellent service again.

Item arrived quickly but sadly did not suit my shape, was disappointed as I really wanted to get out of the baggy swim shorts I use and hopefully improve on my swimming. Tried the jammers and long boxer trunks but neither suited me. Both items were quality items and the service from Decathlon was second to none both on the purchasing and the returns. Would recommend Decathlon.

too small

Can't try them out in the shop any more, get them home, much too tight. They should really let you know that you need to buy bigger sizes (at least one if not two sizes up!). The shorts themselves seem well made, just cant get them on.


Great enough length in the leg not to cause accidents when chilling after a swim and really comfortable

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Good for swimming/training

I bought these for a change from the jammers I wear and they are probably more suitable for lounging around on the beach than regular training but I don’t regret buying them as they will be used.

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyester cationic

Main lining

  • 100% Polyamide

Long boxer-style swimming shorts

LONG SWIMMING BOXERS – length 12.6", with good mid-thigh coverage LONG BOXERS swim shorts are ideal for those who prefer a style with more coverage than regular Boxers. A swimsuit should primarily favor comfort. It should enable you to move with ease. That is why it is important to choose the shape 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.

A 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 ABCDE score is provided to enable easy identification of the most environmentally-friendly products when comparing products of the same type (T-shirts, pants, backpacks). Decathlon chose to apply this voluntary environmental labeling system. Web: Video:



Product testing

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

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