Women's A2 by Aerosoles Creativity Shaft Size Chart
  Women's A2 by Aerosoles Creativity Shaft Size Chart
  US Size Shaft height Circumference (zipped) Circumference (unzipped)
  5M 14.45 14.69 15.68
  5.5M 14.57 14.9 15.89
  6M 14.69 15.12 16.11
  6.5M 14.8 15.33 16.32
  7M 14.92 15.55 16.54
  7.5M 15 15.77 16.76
  8M 15.16 15.98 16.97
  8.5M 15.28 16.2 17.19
  9M 15.39 16.42 17.4
  9.5M 15.1 16.63 17.62
  10M 15.63 16.85 17.84
  10.5M 15.75 17 18
  11M 15.67 17.28 18.27
  12M 16.1 17.71 18.71

Size chart is a general guide. It may include sizes that are unavailable for this item.