I wear 7 1/2 always in sneakers, and ordered a 7 1/2 which fit nicely with room for socks too! This shoe is heaven with the memory foam, especially if you have sensitive feet or foot pain, plus the added thickness in sole for shock absorption. I so wanted to keep them, but I did not like the heel's ledge, as afraid I might get a blister. Just not for me! So I am returning , and purchasing the D'Lites  lace up sneakers! Hope they work because I really like the loose fit of this mule! J.C.