ST100 Women's Mountain Biking Crop Bottoms - Black



Made for
With its ergonomic foam pad designed for women, the ST 100 Rockrider mountain biking cropped bottoms absorb vibrations and reduce chafing for improved comfort.The knees and thighs are protected.
Sizes guide

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Sitting comfortThe ST100 pad is made from preformed foam specially designed for women's bodies.
Freedom of movementForget you're wearing it: snug cut, stretch fabric, and comfortable waistband
StabilityShaping material. Comfortable elastic at the waistband and underneath the knee.
Waranty2 Years
Technical Information

Let's talk about the women's mountain biking cropped bottoms...
These cropped bottoms fall below the knee and are made from a single material: stretch fabric.Ideal for accommodating your movements and providing support. All while staying lightweight and breathable. The ST 100's pad is discreet. Which makes it easier to move on the seat.
Our tips for the mid-season
In mid-season, you may wish to wear the mountain biking cropped bottoms underneath shorts to protect your thighs from both the weather and plants or brush on your trail.
How to improve your comfort in the saddle
For improved comfort, we recommend: 1/ Investing in cropped bottoms or shorts with a built-in pad to avoid irritation and chafing. 2/ Take care to choose a saddle suitable for women's bodies. The ST 100 and ST 500 saddles are available on the Women's Rockrider mountain bike. But also as spare parts. 3/ Add a gel seat cover to your saddle. They are compatible with the Women's Rockrider saddles and make you more comfortable during your MTB tours thanks to their spongy texture.
Information / Concept / Technologie
Main fabric : 87.0% Polyester (PES), Main fabric : 13.0% Elasthane Padding : 51.0% Polyester (PES), Padding : 49.0% Polyurethane (PU)

Product test
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.


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Material wasn’t as good as my previous pair
Used for 2 to 8 weeks
Great product for a great price when I bought my first pair last spring! And that pair lasted about 18 months of weekly spin classes. Then they finally wore through (where they catch on our type of spin bike.

So I rushed to Decalthlon to replace them only for them to be a disappointment. The amount of elastane in the fabric is less so the are not tight enough on the tummy and fall down. They also succumbed to the friction within 3 wears!!! Very disappointing!

Please please please change back to better fabric.
Excellent buy
Used for 2 to 8 weeks
Excellent buy good value for money
Very satisfied of my purchased
Used for 1 week or less
Good quality, perfect fitting. Very happy
Used for 2 to 8 weeks
Best pair of cycling pants I have had really comfortable
OK, but not great
Used for 1 week or less
I cycle around 100 miles a week and LOVE the decathlon cold weather trousers. I bought these as it’s getting a bit warm and could do with something a bit cooler. They are very stretchy, which is not necessarily a bad thing, but they do not seem to give legs as much support as the cold weather tights. To be honest, these have been consigned to the 'wear in dire emergency' pile of clothes and I’ll be buying a better pair with a bit more compression to support my knees.
Great value
Used for 2 to 8 weeks
Wife really impressed and offered additional comfort on the bike!
Comfort and stylish
Used for 2 to 8 weeks
The medium size fits great - i'm a size 12 - and i've used a number of times with nothing but good to say. The cycling shorts wash well too. The padding is so comfortable that I have enjoyed cycling further than expected!
Fit, styling and comfort
None as yet
OK with big pants!
Used for 2 to 8 weeks
Super comfy, nice soft fabric however unfortunately, after about 5 miles the stitching that holds the padding in transforms into an accessory from a Saw movie and cuts into your bum like razor wire. OK for very short rides and fine with giant pants underneath but cycling bottoms should be designed to be worn commando.
soft, fit well,
Internal stitching chafes
Used for 2 to 8 weeks
Great value for money. These are super comfy and served me well during a 60 mile cycle at the weekend.
Really comfy padding with elasticised cuffs
Good padding for shorter rides
No negatives but these wouldn't be good for a full day of riding, I use these for commuting, 10 miles. Fit is comfortable and the end of the trousers have that soft rubbery stuff so they don't move around and sit nicely on the leg. Great for spring/summer cycling when it's still a bit nippy!
Adequate short ride padding, comfortable fit
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