We have seen so many Mi Band Straps in the market and its kind of flooding the marketplace. But I will only go with quality for sure, one of the more popular ones and more durable is made by one of the Xiaomi Ecosytem company under Mi Jobs. I have bought several of their straps to try, be it rubber, alumimum and stainless strap, they all look more premium, more durable and more stylish.
Check out my hands on review