Skirt Sizing: Newborn: Length: 6" - Waistband: 12" Infant (6-12 Months): Length: 9.5" - Waistband: 12.5" 12 Months: Length: 8" - Waistband: 13" 18 Months: Length: 10" - Waistband: 14" Small: Length: 12" - (size 2-4) Medium: Length: 14" - (size 4-6) Large: Length: 16" - (size 6-8)