Eco-Design
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Mountain Bike Undershorts ST 500 - Black

£17.99

These Eco-Designed, comfortable mountain biking undershorts have been designed for rides lasting up to 4 hours.

Strike a balance between support and simplicity. With their thick pad and breathable fabric, these ST 500 mountain biking undershorts keep you incredibly comfortable and cool.

Color: BLACK
Size: size guide

Quantity:

Learn more about Eco-Designed Products.

Product benefits

Sitting comfort

Sitting comfort

Ride comfortably for up to 4 hours with the ergonomic foam pad (13 mm).

Moisture management

Moisture management

Stay dry: the airy mesh fabric quickly wicks away perspiration

Stability

Stability

Elasticated parts for increased support and improved comfort

Stretch

Stretch

Elastane in the fabric to guarantee ease of movement.

Compatibility

Compatibility

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

Lightweight

Lightweight

170 g in size L.

Ecodesign

Ecodesign

Opaque part: 87% recycled polyester Mesh part: 86% recycled polyester

Technical information

ARE THESE UNDERSHORTS SUPPORTIVE? FIND OUT MORE.

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.

This pad has been designed for more regular users wishing to progress in mountain biking. The support foam is just as soft but more dense. It protects the cyclist's pressure zones for up to 4 hours. The foam is soft and the stretchy outer layer hugs the cyclist's body, so the pad can follow the body's movements.

Foam thickness: 13 mm
Foam density: 100 KG/m3
Foam firmness: 25 KPa

Shorts, undershorts, pad? Here are our tips!

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.

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.

A rating to compare products' environmental impact

A product's environmental impact is calculated for its entire life cycle 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, trousers, backpacks etc.).

Decathlon openly displays the environmental ratings of its products.
To find out more: http://sustainability.decathlon.com/

Care tips

Machine wash at 30°C. Synthetic programme. Turn the garment inside out. Do not add softener. Line dry in a warm, ventilated area. Do not tumble dry.Do not dry clean. Do not bleach. Do not place on a heater to dry.

Warranty

2 years

Product concept & technology

Product Composition

Main fabric 87% Polyester, 13% Elasthane Yoke 86% Polyester, 14% Elasthane Padding - Outer fabric 63% Polyurethane, 30.71% Polyamide, 6.29% Elasthane

STOCK ADVICE

Store in a clean and dry place.

TESTS

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.

Maintenance advice

Machine wash - 30° max - normal

Machine wash - 30° max - normal

Do not bleach

Do not bleach

Do not tumble dry

Do not tumble dry

Do not iron

Do not iron

Do not dry-clean

Do not dry-clean

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