Size Chart
  S/M 6 7/8 - 7 21 1/2 - 21 7/8"
  M 6 7/8 - 7 1/4 21 1/2 - 22 5/8"
  L 7 7/8 - 7 1/4 21 1/4 - 22 5/8"
  L/XL 7 1/8 - 7 1/4 21 7/8 - 23 1/2"
Size chart is a general guide. It may include sizes that are unavailable for this item.