Buy shoes in the afternoon towards the day’s end. Your feet have expanded through activity by this time therefore will be in their largest. In any case, remember that shoe sizes, just like diamonds, aren’tforever. Your left foot and your right will have varying measurements, so it’s better to choose a size that can accommodate both the longer one and the wider one. A slight heel gives added arch support for your feet. Comfort in the instep area is your primary concern. Depending on your foot type, you may want to explore shoes with different support types. I Walk around while fitting your shoe.Via lifespy.com