These are a nice style from Dansko. This style varies just a bit from the cute slip ons that were offered for Spring and Summer. I ordered the same size, a 40, as I wear a 9.5, and have noticed that this new style is just slightly smaller than the pair I already had from the Spring line. Had I tried them on in a store, I might have tried the 41, as the 40s don't give me much wiggle room in the toes. I can still wear them, though, and am hoping they will stretch a little. Take note that the lace up style in the same size are roomier in the toe box.