I wear an American size 10 and ordered the Ecco sandals in size 41. They fit very well, but my feet are wide and so the bunion area overlaps the sole ever so slightly. When I first put them on, I was concerned that maybe the band over the arch might be too snug, but after an hour or so wearing the sandals around my home, they fit perfectly. These now are my new &#34;go to&#34; sandals for warm weather shopping and work.  I'm also happily surprised that the leather thong between the toes is narrow, so it doesn't rub, and is totally comfortable. This is my second pair of Ecco shoes. My other pair is the toggle tie sandal, which after a year of wearing almost daily, still look new.  I'm thrilled to have a pretty pair of sandals that also give wonderful support and get compliments. I started wearing Ecco shoes to help solve the misalignment in my knees - which was being aggravated by wearing shoes with no or improper foot support.