The product is great!
I regret not getting the one with two tightening buttons, because I feel that with just one button, it tightens more in the button area and less in the front. But it's a detail
Importantly, the return process is very bad and laborious, the worst I've had so far.
I have returned many products and they always send the label ready. Doing the entire shipping process is laborious and very bad. This point could certainly prevent me in the future from buying something again that I'm unsure about the size of, I would look at it with care.