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      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      Men's Mountain Bike Undershorts EXPL 500 - Black
      ROCKRIDER

      Men's Mountain Bike Undershorts EXPL 500 - Black

      8580800
      $19.00
      $14.00
      -26%
      Tax included
      977 reviews
      824 of 787 people recommends this product
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      • Men's Mountain Bike Undershorts EXPL 500 - Black
      Men's Mountain Bike Undershorts EXPL 500 - Black
      Size:

      Size Guide

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      Size guide
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      Home Delivery
      Within 48 Hours
      Available
      Click & Collect
      Pickup in store within 4 Hours
      Stock availability
      These comfortable mountain biking undershorts have been designed for rides lasting up to 4 hours.

      With its thick pad and breathable fabric, the ergonomic foam pad on these men's undershorts absorbs vibrations and prevents chafing and irritation.

      Main fabric: 13.0% Elastane, 87.0% Polyester; Foam: 100.0% Polyurethane; Yoke: 14.0% Elastane, 86.0% Polyester; Lining: 100.0% Polyethylene

      BENEFITS

      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

      Stability

      Fitted cut without compression, very elasticated waistband

      Stretch

      Elastane in the fabric to guarantee ease of movement.

      Compatibility

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

      Lightweight

      170 g in size L.

      TECHNICAL INFORMATIONS

      In a nutshell

      Pad thickness: 13 mm
      Pad density: 100 kg/m3
      Pad firmness: 25 KPa

      Undershorts support.

      Bibless undershorts can be much more practical. But do you get enough support?
      To guarantee the support you need, even without straps, we have made a pair of undershorts that hugs your body just like boxers. The elasticated waistband adapts to fit you and stays in place with no adjustment needed.

      A SECOND SKIN WITH COMFORT TO BOOT.

      The pad has been designed for more regular users looking to progress in MTB. The support foam is also soft but more dense. It protects pressure zones for up to 3 hours. The foam is soft and the stretchy outer layer hugs the cyclist's body so the pad can follow their movements.

      Foam thickness: 13 mm
      Foam density: 100 KG/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 along.

      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 hindrances to a good cycling experience.

      Reviews

      4.32/5 977 reviews
      824 of 787 people recommends this product
      Confortable
      Manola (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Cuissard très confortable qui tient pas trop chaud pour l'été
      Top !
      Matthieu (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Top !
      au top pour débuter
      Renaud (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      jamais été fan de ce genre de truc (paye ton look) mais je me suis laissé tenter par ce modèle premier prix.
      et bien je suis plutôt satisfait, bien plus agréable sur la selle
      et il se met sous un short donc invisible : top
      Wszystko fajnie, polecam
      Jakub (Poland) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Wszystko fajnie, polecam
      UNKNOWN (Canada) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      These shorts are a great deal. Super comfy for long rides.
      stary do tej pory nie zdjął
      Tomasz (Poland) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      dostał na urodziny i chodzi w nich od tamtej pory
      bonne affaire
      Mikeke (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      le maintien est là, bonne protection
      Trop raide
      CLEMENT (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Il n'est pas très pratique à utiliser, mais le prix est bas.
      中国客户 (China) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      très bon produit
      Patrick (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      très bon produit

      BENEFITS

      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

      Stability

      Fitted cut without compression, very elasticated waistband

      Stretch

      Elastane in the fabric to guarantee ease of movement.

      Compatibility

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

      Lightweight

      170 g in size L.

      TECHNICAL INFORMATIONS

      In a nutshell

      Pad thickness: 13 mm
      Pad density: 100 kg/m3
      Pad firmness: 25 KPa

      Undershorts support.

      Bibless undershorts can be much more practical. But do you get enough support?
      To guarantee the support you need, even without straps, we have made a pair of undershorts that hugs your body just like boxers. The elasticated waistband adapts to fit you and stays in place with no adjustment needed.

      A SECOND SKIN WITH COMFORT TO BOOT.

      The pad has been designed for more regular users looking to progress in MTB. The support foam is also soft but more dense. It protects pressure zones for up to 3 hours. The foam is soft and the stretchy outer layer hugs the cyclist's body so the pad can follow their movements.

      Foam thickness: 13 mm
      Foam density: 100 KG/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 along.

      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 hindrances to a good cycling experience.

      Reviews

      4.32/5 977 reviews
      824 of 787 people recommends this product
      Confortable
      Manola (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Cuissard très confortable qui tient pas trop chaud pour l'été
      Top !
      Matthieu (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Top !
      au top pour débuter
      Renaud (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      jamais été fan de ce genre de truc (paye ton look) mais je me suis laissé tenter par ce modèle premier prix.
      et bien je suis plutôt satisfait, bien plus agréable sur la selle
      et il se met sous un short donc invisible : top
      Wszystko fajnie, polecam
      Jakub (Poland) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Wszystko fajnie, polecam
      UNKNOWN (Canada) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      These shorts are a great deal. Super comfy for long rides.
      stary do tej pory nie zdjął
      Tomasz (Poland) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      dostał na urodziny i chodzi w nich od tamtej pory
      bonne affaire
      Mikeke (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      le maintien est là, bonne protection
      Trop raide
      CLEMENT (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      Il n'est pas très pratique à utiliser, mais le prix est bas.
      中国客户 (China) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      très bon produit
      Patrick (France) ✓ Verified purchase What is a "Verified purchase"?

      Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

      We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

      If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

      The label "Verified purchase" let's help you judge the reliability of a review.
      très bon produit