FST 100 Cardio Fitness Shorts - Black

Users reviews
4.55 / 5 295 Reviews
Key feature
Just because you're a beginner doesn't mean you don't need a technical product! These shorts are breathable, stretchy, and do everything you need from a pair of fitness shorts. All at a low price.
Moisture management
Breathable, quick drying fabric keeps you dry.
Freedom of movement
360° concept with a special cut and fabric for total freedom of movement.

Technical card

Main fabric : 100.0% Polyester (PES)
1 year


Fitness shorts or running shorts: what's the difference?
When doing fitness activities, you move in all directions. That means you need shorts that are long enough to keep you covered when you bend over or do movements like squats. When raising your legs or doing lunges, you need a stretchy, breathable fabric to follow your every move and provide good moisture management. All our products were designed to meet these needs which are different to running!
The 360° concept: clothes that move with you!
An example? All our T-shirts feature a special cut at the shoulders to keep you moving freely. How did we come up with the idea? Our team observed users at gyms and worked with our R&D lab. And because style also matters, our designers drew inspiration from the energy of the sport to create dynamic lines. The result: fabrics and a look that were made for your sport! This is the 360° concept: high-tech enjoyment.
Are products tested before being sold?
Of course! All our fabrics must successfully pass rigorous lab tests to ensure your comfort and safety. We test them for colourfastness, resistance to repeated washing, perspiration wicking and more - we call these our "torture tests". And after that? Is that it? Not quite. We then have sports users put our products through the ringer. We listen to and analyse their feedback to fix what needs to be improved. And only then is your sports clothing ready!
What if I'm not satisfied with my product?
You have 365 days to return your product to any DECATHLON store if it does not meet your expectations (although, maybe not straight after a workout...). You can also try products out for seven days before you pay (with a pre-authorisation on your bank card, which will be automatically debited after seven days) to be sure the product suits your needs!

Users reviews

4.55 / 5 295 Reviews
277 users recommended this product

  • Man
    30-39 years old
    13 July 2020
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Affordable and comfortable

    Buy true size

  • Man
    30-39 years old
    10 July 2020
    Use since 1 week or less
    That review has been deposited on this product version

    The material was good and feel nice.

  • Woman
    20-29 years old
    10 July 2020
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Comfortable wear

    The sizing is great and it comes with big pockets that are very practical. The fit and the material is very good. Can be used for the gym or running.