I?m usually a size 8 but I had to buy a 9 in these. I had a pair of these but wore out the tread on the bottom and they became dangerously slippery. Unfortunately, the box was thrown away to return them. I?ve had them in continuously for over a week now & they haven?t bothered me a bit. It feels durable. On the other hand the case that came with the XM3s cannot be squeezed this way and its way more sturdy and hard. It came with a charger and extra bud replacements. One request: Some lighter base colors, in the brown/tan/beige range. Mir gefällt es, dass macht die Musik noch druckvoller. These are more comfortable because they give adequate support to my high arches.