I received these in short order from Amazon, threw open the package and put the sandals on my feet...rats, need adjusting.  Fortunately, these can be adjusted in two places.  They are just short of perfect.  Love the color, love Birkis, love the two buckles for adjusting.  The strap closest to the let rubs a little on my foot as I have a high arch.  I wish the strap didn't come up quite so close to the ankle.  I am keeping them however as I believe with all my heart that they will make themselves at home on my feet.