Here is the True Size Chart(approx) :
Size S:(Waist:60cm-100cm)
Size M:(Waist:66cm-110cm)
Size L:(Waist:70cm-120cm)
Size XL:(Waist:74cm-130cm)
Size XXL:(Waist:80cm-140cm)
Please allow 1-2cm(0.4-0.8inch) differences due to manual measurement.It will be much more exacly if using a similar dress as comparision.
Size S:(Waist:60cm-100cm)
Size M:(Waist:66cm-110cm)
Size L:(Waist:70cm-120cm)
Size XL:(Waist:74cm-130cm)
Size XXL:(Waist:80cm-140cm)
Please allow 1-2cm(0.4-0.8inch) differences due to manual measurement.It will be much more exacly if using a similar dress as comparision.