I bought these shoes because two co-workers raved about the comfort. The add claims that the strap has a lycra stretch with a gracious fit. My two co-workers said that they fit true to size. I ordered two pairs, one black and one brown. The strap on the brown pair is so tight I can't even get my feet in. They fit my 8 year old daughter snugly. The black pair I can get my foot in but it is very snug and can only be worn for a short time and on dry days with no humidity. The foot bed is comfortable and I am disappointed that I am unable to wear either pair.