Measure your foot length from heel to longest toe
Measure both feet and use the larger measurement
Measure your foot width at the widest part
Compare your measurements to a shoe size chart
Try shoes on later in the day when feet are slightly larger
Wear the type of socks you plan to use with the shoes
Leave about a thumb’s width of space at the toe
Walk around to check comfort and fit
Check that your heel does not slip
Make sure the shoe feels snug but not tight