I also wear these whenever I go on long walks. I received them the day before we went and had no time to “break them in” but they were totally fine the whole time we were there. De tallaje vienen perfectas solo que a mi en particular no me sirven, si eres de enpeine ancho no te van a entrar, la abertura es estrecha, pidas el número que pidas la abertura será estrecha, en cuanto al material, es puro plástico pero se ve de calidad, es robusto y bonito, si no tienes el pie demasiado ancho que quedarán bien sino opta por otras porque estas no te servirán como me ha pasado a mi. I bought these in April, by August they’d gone into the bin after falling apart. 5/7, and a 7 medium fit and felt great. Old man approved! It is not a 4. product met my needs and quality is good. Hace mucho ruido cuando caminas como si lal plataforma fuera hueca. It is lightweight, the pads dont press to hard on the ears, its not an isolating earpad design, but this is what I wanted.