elasticized waist elasticized leg openings sits on the hips fitted through body size xs = 5-6 years old; 22 waist size s = 6-8 years old; 22-23 waist size m = 8-9 years old 24 waist size l = 9-11 years old 24-25 waist size xl = 11-12 years old 26 waistmachine wash according to the care instruction label . Best Holiday gift for Kids , perfect Panties for Christmas!