S 66cm 52cm 36cm 47cm

M 70cm 53cm 37cm 48cm

L 74cm 54cm 38cm 49cm

XL 78cm 55cm 39cm 50cm

1cm=0.394inch, 1inch=2.54cm
S size is recommended to wear 40-47.5kg
M size is recommended to wear 47.5-52.5kg
L size is recommended to wear 52.5-55.5kg
XL size is recommended for weight 55.5-65kg