I did not try using this product when walking around as the smaller size didnt feel comfortableI gave it 3 stars, because even though it didnt feel good, it did reduce the noise levelIf I am able to get this model in large, I will rewrite a new review. Eso sí, el gran problema es que para que funcione cualquiera de estos modos debes tener el auricular encendido. I picked them up a little over a month ago, despite reading some sketchy reviews on Reddit, and immediately was impressed by the construction, and feel. Take your time with installation so it is tight and square. This case will hold up well - provided you treat it well. Material is a rough cotton after washing. Its winter here and even without socks these slippers keep my feet warm. Once youve moved forward you cant backtrack. I really like the slippers. I just wish the first pair hadnt been defective, since I liked that style better.