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Rockrider EXPL100, Short Sleeve Mountain Bike Jersey, Men's

Sale price: $9,999.00 Regular price:

Ride through the undergrowth with no worries this summer. This breathable jersey is the perfect size to let you move freely. 1 secure pocket at the back.

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This product runs small

Sale price: $9,999.00 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8668022

Product Features

Rockrider EXPL100, Short Sleeve Mountain Bike Jersey, Men's | This short sleeve jersey is designed for your 1st mountain bike rides in warm weather. Compact design, regular cut, and durable material on the sleeves.

Ride through the undergrowth with no worries this summer. This breathable jersey is the perfect size to let you move freely. 1 secure pocket at the back.

A photo of the Rockrider EXPL100, Short Sleeve Mountain Bike Jersey, Men's in use

Wild Vegetation Resistance

Brush up to nature! Fabric is durable and snag- and abrasion-resistant.

Freedom Of Movement

Regular cut designed for mountain biking to give you better freedom of movement.

Moisture Management

Our breathable fabric lets you stay dry throughout your ride.

Compact Design

Packs away into its zipped rear pocket


Zip pocket in the back for carrying small items (tissue, etc.)


Lightweight and comfortable to wear. 4.6 oz in size M.

Product Customer Reviews

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Rockrider EXPL100, Short Sleeve Mountain Bike Jersey, Men's,blue gray
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Cheap n cheerful for a quick blast on the trails.

Cheap as chips, won't last for ever but for an hour or two trailing and sessions...Great.

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Leider keine wirkliche Tasche

Sitzt schön luftig, schaut gut aus, lässt sich in die eigene Tasche einpacken, außer dieser fehlt es allerdings an den fahrradtrikottypischen Taschen, daher einen Stern Abzug.

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Très bien en ballade…

Très bien en ballade vélo à la journée

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Léger respirant Très confort

Léger respirant Très confort

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L; ouverture en V…

L; ouverture en V au cou monte un peu trop haut ,ou pas assez ouvert au niveau du cou dans le dos...

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Très bon

Excellent produit ! Très agréable à porté et très respirant par temps chaud !

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Size Guide

Size Guide Visual

Additional Product Information


Main fabric

  • 100% Polyester cationic

Sleeve fabric

  • 14% Spandex
  • 86% Polyester cationic

  • 9% Spandex
  • 91% Polyester cationic

Resistant to rubbing

Our design team selected a fabric with a tight weave so you can ride the trails without worrying about branches and leaves. The result? A real mountain biking jersey that withstands snags when riding through brush, as well as friction from the straps on your hydration backpack. Plus, the material is designed to offer good ventilation!

Straight cut

This jersey is sporty, relaxed, and fully designed for mountain biking! The cut and seams were designed to prevent friction and to keep you as comfortable as possible while in a riding position. For example, the jersey is long enough in the back to keep your entire back covered, even when leaning over your handlebar.

1 secured pocket

For carefree riding, plan ahead and keep the essentials at hand: - On your right, a secure pocket (17 cm x 11 cm) with an easy-open zipper (even with gloves on!) so you can access items you need while riding with only one hand, such as your tissues, tire levers, etc. - The jersey material is very extensible; we recommend using it for lightweight items. - You can pack the jersey down into this pocket, for easy transportation and storage.

Packed size

Length: 15 cm Width: 11 cm Height: 5 cm

Product care

You can find detailed info on looking after your mountain bike clothing on our website

Advice from the team

Think about wearing a helmet and gloves when you start mountain biking: not just for falls, but also to protect yourself from low branches! For comfort, wear a pair of shorts with a pad to prevent chafing. A water bottle or hydration backpack will keep you hydrated. And finally, puncture repair spray so you can finish your ride without having to fiddle with repair tools.

Product tests

Our team of product designers based at the B'Twin Village in Lille is continuously working to make cycling more comfortable for our users. Our obsession is to create products that meet the specific cycling needs of our users and eliminate things that get in the way of their rides.

Determining the environmental impact of our products.

A product's environmental impact is calculated for its entire lifecycle using various indicators. An overall rating (ABCDE) is given, allowing you to easily identify products with the best environmental performance by comparing similar products to each other (T-shirts, pants, backpacks etc.). Decathlon openly displays the environmental ratings of its products. To find out more:



Product testing

Our engineers always have real riders test all our products in real conditions. These tests round out our lab tests and let us validate all our products before they hit store shelves.

Storage instructions

Store in a clean and 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