PLEASE READ BEFORE PURCHASING: These are NOT white! They are a natural (bone) color.
Huaraches are not made in half sizes. Since they are made out of leather, they will stretch out once broken into. They are true to size, so if you are a 7 stick with a 7, 8 stick with 8 and so forth.
8.5 get 8. They will fit snug, but will loosen up after wearing them a couple times. If you have a narrow foot and up size, you run the risk of them fitting too lose.
Exception: If you have a wide foot, size up. 7.5 get 8, 8.5 get 9.