These are really comfortable for me, supporting and encasing my high-arched feet perfectly. They are much more comfortable (and well-constructed!) than the Tevas that I wore to death all too soon. These are great for travelling - they work for both hiking (great grip from the soles) and cities. I'm usually a 6.5; I ordered size 6 and they fit perfectly. If I had gotten a size up, the straps would have been too long, and the heel would have flopped around a bit. I'd always thought I had wide feet, but I guess overall I have 'low volume' feet (kinda boney).