PANTY N°91
A layer that supports without constraining. Quiet confidence, held close to your skin — and to your strength.
Technical details
- Convient aux sports à faible, moyenne et forte intensité
- Plat et doux sangles
- No seams in sensitive areas
- Designed by Hastko in Chamonix-Mont-Blanc
- Not recommended if your body type is Small bust + deep cup: In this case, opt for No. 92 or No. 29. Cup A or small B: In this case, opt for any other model in the range.


Ultra-light and comfortable.”
Key Technologies
Frequently Asked Questions
How to find the right size for PANTY N°91?
To choose the ideal size, please refer to our size guide available on this page.
How to care for your PANTY N°91 daily?
Wash at 30°C in a protective laundry bag. Avoid tumble drying, as well as the use of softeners and bleaches. Do not iron.
Does it dry quickly?
Our products are designed with breathable materials and incorporate mesh inserts, allowing for quick drying after exercise and washing.
Is the PANTY N°91 designed for durability?
Every style comes with a 2-year warranty: if there's an issue, we'll exchange it. Simple, quick. Because a good sports bra isn't chosen for a moment, but for thousands of movements.
Can I return the product if it doesn't fit?
No problem. You have 30 days after receipt to return an item. During the holiday season (November 15 → December 31), this period is extended to 60 days.
Join 30,000 Hastko customers
"Wonderful, I had stopped running because of chafing and erosion burns caused by my old sports bras, and now this top is a second skin, I'm living again, I'm running again, it's great!"
"Very comfortable bra, feels like a second skin. Just trying it on while resting, it's nothing like my old bra: a feeling of lightness and comfort. After a while, I could barely feel it anymore. Plus, it's quite pretty and well-made! Thank you!! You won't be disappointed!"
"Finally, effective and attractive sports underwear. A French brand that makes you dream, with values that align well with mine. I feel beautiful and strong wearing them, and nothing stops me from fully enjoying my sport."
"No chafing after my long runs, whereas with my other sports bras I was completely used to it. It's a pleasure, I don't feel it, it supports correctly, and on top of that, it's super pretty!"





























































