I was at the "Walking Store," had my feet measured, and tried out the Sirima shoe.  Size 7, everything felt fine.  I came home, and ended up ordering the Kaya from Amazon because it was more than $100 cheaper.  Reading the reviews, I even went up half a size and ordered the 7 1/2.  When the Kaya arrived, I was pleasantly surprised that it was cuter in person.  Then I tried it on.  I was in immediate pain due to both the shortness of the shoe and the narrow shoe box.  My toes hit the front of the shoe and were squeezed so much that they hurt.  I wasn't even wearing any socks; I was so sad!  And had to return the shoes.  (I ended up ordering the Lami in black and it fits fine in a 7 1/2.)