For these cuffs you will need to measure around your upper thigh close to your crotch level and lower thigh as can be seen in the photos. We recommend you measure on the tighter side but not too tight as the strap have some stretch to them.
XXS 30-40cm
XS 35-45cm
S 45-55cm
S/M 50-60cm
M 55-65cm
M/L 60-70cm
L 65-75cm
L/XL 70-80cm
XL 75-85cm