I could easily have paid double or triple the price (I paid roughly $16) and still been happy with the quality at that cost. They run slightly large but I wear socks so they are perfect! The exterior layer is very lose, slides around a lot, and rapidly get even looser, to the point where huge bulges and bundles start to build up. Dicha app pierde conexion con la bocina y tienes que estarla sincronizando seguido. As I intend to use these solely for mellow indoor cycling, they seem to be a good fit. and I have added them to my permanent rotation- with all of my other FitFlops! I am happy with the build quality and I DID get these for $11. It fulfills all the requirement of basic headset with mic for calling. You dont know what to expect when online shopping, but i feel like this boot is a home run. Talla 7 y media me quedo bien talla 10 usa.