Wow, for a $50 pair of Clarks these earn 5 stars!  They do run big and I read the reviews before ordering them and ordered 1/2 size down.  They fit me perfectly!  Since these are synthetic and not leather (I prefer synthetic) they do not stretch much so if you have bunions you may want to try to go with your normal size and not size down.  Theres some arch support but it isn't high arch support.  I am very pleased with these sandals!!