These sandals are so comfortable, you can't go wrong with a soft fabric shoe!  They do run big for a woman's size. I normally wear a size 7.5 to 8, in this particular style a size 7. The arch support will realign and cradle your feet, it may take time to get used to if this is your first orthotic shoe.  My Dr suggested these to me to use as a slipper around the house, instead of going barefooted for relief of the onset of plantar fasciitis. Along with doing the stretches, I have no more issues.  I actually bought this particular pair for a family member and she's enjoying all they have to offer too!  I've bought another feminine style and they run more true to fit or smaller in size, and need to be broken in.