Size

inches

cms

X-Small:

24 - 28

61 - 71

Small:

28 - 32

71 - 81

Medium:

32 - 36

81 - 91

Large:

36 - 40

91 - 102

X-Large:

40 - 46

102 - 117

XX-Large:

46 - 52

117 - 132

XXX-Large:

52 - 58

132 - 147