What customers say

The feel of the silicone mouthpiece does not cause gum chafing during long runs. I paid the courier at the door, and the package arrived securely sealed.

I bought it for my partner on the recommendation of our running plan. It takes a couple of runs to get used to the airflow resistance, but the steel build feels solid.

I ordered another one to keep a spare in my running pack. Paying by bank transfer was easy, and the product performs just like day one after many washes.