Recommended size Size S (37.5-45KG) (skirt length 42) (skirt 84) (elastic waist) Size M (45.5-50KG) (skirt length 42) (skirt 86) (elastic waist) Size L (50.5-60KG) (skirt length 42) (skirt 88) (elastic waist) Size XL (60.5-65KG) (skirt length 42) (skirt 90) (elastic waist)