While living in Germany, I discovered the blissful comfort of Birkenstocks and have quite a collection! Dopo 4 anni questi sandali sono ancora come nuovi. These are great, you dont have to force the buds into your ear canal to get a good seal. Also the software in the mouse and no added software to download. I wear them all day. So I would say order 1 size up. It looks great with neon beads so that when the elastic opens up a bit, they coordinate with the beads. I found the product runs large. I had to get one as soon as I saw it. Totalmente recomendable