The Indy boot is on the True Balance last and runs a half size larger (as per Alden of Carmel and The Shoe Mart) than regular. So one should order the Indy a half size smaller than their true shoe size. I wear a size 8 in the Indy because my true shoe size is 8.5. I know if I got a 7.5 it would be too small for me. I hope this helps.