Made from Ultrashell® slim, our in-house 2.5-layer fabric the STORM jacket has been designed for the most difficult ultra-trails. Practical, lightweight, highly waterproof and totally windproof, it exceeds all jackets at a very attractive price.
Offering 10,000mm water protection, it is lightweight and folds into its chest pocket.
Technology: Ultrashell® Slim
Use: Trail Running, Ultra-trail, and Running
Performance: Waterproof, breathable, and lightweight
Also available for men

This jacket has been designed with our ELITE TEAM athletes. It is made to be compatible with all disciplines of trail running, including ultra-trails, and features an ergonomic cut with a wraparound hood, engineered to move with you without hindering your stride.
Equipped with the ULTRASHELL®slim membrane, it combines optimal protection, lightness, and stretch. Its next-generation microporous structure enhances airflow while ensuring excellent weather resistance.
- Waterproof to 10,000mm of water and highly breathable with 12,500 MVP
- Lightweight, stretch fabric to follow your running movements.


- 1 zipped chest pocket with flap
- Ergonomic wrists with thumb passage
- Ergonomic hood with inner binding for a perfect fit while running.
- Snap-tab® behind the main zip to keep the jacket stable even when open
- Multiple reflective prints for safety at night

First of all, wash as little as possible,
Noticeable dirt, sweat, or odors
Wet-out (rain no longer beads on the surface)
After heavy use in mud, salt, or sunscreen
Liquid detergent, mild (no powder)
Ideally: a technical wash (e.g., Nikwax Tech Wash)
Optional: DWR reproofing product if water beading is poor
No fabric softeners, bleach, stain removers, or powder detergents
No dry cleaning (unless the label explicitly allows it)
Don’t over-spin or overheat
Spot-clean mud/salt with a damp cloth
Brush off dirt before it embeds
Air out after sweaty activity to delay full washes
This approach keeps the membrane breathing, maintains waterproof performance, and extends the life of your jacket.