I have read reviews on this style of Crocs on several different sites, and yes, it does run small. I ordered up, and am glad I did. So much so, that I have this one in two colors now. I only wish my first choice of the purple color were available in my size. Nobody has it, nada, nowhere. If you have bunions, Morton's neuroma, hammer toes, or other foot or toe problems, the adjustability of this shoe is awesome. I can wear them rather loosely, like Crocs were originally intended to be worn. The way I like them is to wear the upper strap on the second buckle hole, and the lower strap on the third buckle hole, just to help keep the shoe on, but put absolutely no pressure on any part of my toes or lower foot. The height of the heel is very low, but the platform adds a bit of height, so that I feel like I'm wearing a woman's shoe, rather than playing dress-up. Please Amazon, get these in the purple color!