Great product at a very good price.
Easy to use. Very good grip on trousers, etc
I use this armband as an ankle trouser band for cycling.so I do not know why it his just called an armband. It will be interesting to see how long it keeps its tension. The name B'twin does not indicate any usage to me.
Quick and easy to use. Lightweight and easily seen
Use them every time I go out with my new bike (every day)