"These shoes run true to size (I wear a 6 in all flats and heels, and the 6 works well in these as well). They take a little breaking in because the back is a bit stiff and the stitching rubs, creating blisters. I've been sticking some moleskin on the backs of my feet whenever I wear these and it's been fine. I like that this style covers the toes more than a ballerina flat (no toe cleavage!)."