These sandals are my third pair of birks, but I've never had this style before.  They are so comfy and so pretty, I'm really happy with them.  I usually wear a 39 in birks, so I ordered these in a 39, but they ran a little big.  I returned them for the 38 and they are perfect.  Also, I have to say, Amazon's return policy is the best and easiest of any online shopping experience I've ever had! Great shoes, great price, great service.