The best way to measure to your foot is to do the following:
Note: in the circumstances that your 2nd toe is substantially bigger than your big toe, then measure to your second toe. If you have one foot bigger than the other, then measure your biggest foot.
Archies Flip Flops sizing runs very true to your normal running shoe size, so we suggest to select that for your size.
Note: If you are a half size we recommend ordering the size up.