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Rockrider EXPL500, Mountain Biking Undershorts, Women's

Sale price: $24.99 Regular price:

Elasticated, medium-firmness pad is both discreet and breathable for maximum comfort (absorbs vibrations and prevents rubbing). Waistband slims your waist for tummy-control

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Sale price: $24.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8667042

Product Features

Rockrider EXPL500, Mountain Biking Undershorts, Women's | These women's MTB undershorts are designed for riding in warm weather for up to 3 hours.

Elasticated, medium-firmness pad is both discreet and breathable for maximum comfort (absorbs vibrations and prevents rubbing). Waistband slims your waist for tummy-control

A photo of the Rockrider EXPL500, Mountain Biking Undershorts, Women's in use

Sitting Comfort

Ride comfortably for up to 3 hours with the ergonomic foam pad (13 mm).

Moisture Management

Actively wicks away perspiration to the outer surface for quick drying


Large, shaping, elasticated waistband.


Spandex in the fabric to guarantee ease of movement.


You just need one: these undershorts are compatible with our women's MTB shorts


5.3 oz in size S


Undershorts composed of 71% recycled polyester to be less wasteful.

Product Customer Reviews

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24 Reviews
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Rockrider EXPL500, Mountain Biking Undershorts, Women's,black
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Spin shorts

Amazing difference so comfortable no more agony on the spin bike best fitness buy thanks Decathlon

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No está mal

La tela es fina y transpira bien. A la hora de hacer ejercicio no se siente oclusivos ni tampoco da calor. La cintura ajusta sin apretar. Yo lo uso para hacer spinning en casa pues se transparenta. La parte mala es que la pernera se remanga a pesar de tener silicona y en principio ser para evitar esto.

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Hola ciclista,

Desde el equipo de ciclismo agradecemos la confianza que depositas en Decathlon para realizar la compra del short térmico interior. Así como, la valoración positiva que haces de nuestro producto en la web.


El comentario y la puntuación que has expuesto nos anima para seguir trabajando y sacar los mejores productos. Tendremos en cuenta tu valoración de cara a poder seguir evolucionando en el desarrollo de nuestros productos.


Nuestro equipo trabaja para satisfacer a nuestros usuarios ciclistas, buscando la mejor calidad y prestaciones con los precios más ajustados posible.


Esperamos volver a verte por nuestras tiendas y por la página web.


Reciba un cordial saludo, que tengas un buen día.



Javier - Experto producto ciclismo Decathlon

Je suis très satisfait…

Je suis très satisfait de ce sous short. Je le porte pour mon vélo d'intérieur et il est confortable et rembourré aux bons endroits. Le rembourrage est également discret et, bien qu'il s'agisse d'un sous short, il est agréable à porter seul. A recommender fortement!.

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Plus de grande taille…

Plus de grande taille chez les femmes

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A fait son job…

A fait son job pour ses 2ère heures sortie en VTT

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Je n'avais pas vu…

Je n'avais pas vu que c'était un sous-short femme, il me convient très bien. La coupe est très confortable et le gel très performant.

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Bien pratique pour mettre…

Bien pratique pour mettre sous un short long ou court ... Pas encore utilisé pour faire du VTT ...

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Après avoir essayé plusieurs…

Après avoir essayé plusieurs model et pour un premier cuissard c'est celui ou je me sentais le mieux

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Bon produit.

Bon produit.

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Très bon produit ,fait…

Très bon produit ,fait le taf

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C’est vraiment un super cuissard ayant pas mal de legging je peux le porter avec tous c’est confortable plutôt discret je vais en racheter un 2 ème sans hésitation

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Je prends un cours…

Je prends un cours de vélo d’une heure trente. Ce sous-short me permet de passer le cours tranquillement malgré les coups que je prends de temps en temps. C’est confortable et surtout discret sous un pantalon jogging. Je recommande à toutes celles qui ne veulent pas avoir mal aux parties intimes durant ou après un vélo. Autre chose c’est léger donc parfait en été et en hiver.

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J’ai acheté et essayer je suis très contente confortable

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Additional Product Information


Main fabric

  • 15% Spandex
  • 85% Polyester cationic


  • 32% Spandex
  • 68% Polyamide


  • 100% Polyurethane

Outer shell - Padding

  • 20% Spandex
  • 80% Polyamide

Undershorts support

We wanted to provide the support you need, even without straps. That's why these close-fitting undershorts have a wide elasticated waistband that adapts to you and stays in place, without requiring any adjustments.

A 2nd skin with comfort to boot.

This pad is designed for regular users. The support foam is soft with medium firmness. Provides good user comfort and protects the cyclist's pressure zones for rides of up to 3 hours. Foam thickness: 13 mm Foam density: 220.5 lbs/m³ Foam firmness: 25 KPa

Shorts, undershorts

Undershorts are to MTB what kilts are to Scotland: you wear them against your skin! To avoid chafing, we therefore recommend changing them and washing them as if they were underwear. And when you're riding, your shorts and undershorts should never be attached. Why? Because each has their own role to play: - The undershorts stay in place for comfort and support. - The shorts move with you for better freedom as you cycle

Care instructions

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

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

At Decathlon, all of our products are tested by a panel of users in the conditions for which the products were designed. These tests are led and monitored by our design team. All of these tests allow our product managers, engineers, and the whole mountain biking team to develop, create, and design technical products that guarantee customer satisfaction.

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