Baby Boy One piece Formal Tuxedo Romper with Bow-tie (Black) Combine with Black Shirt and Checkers Print Pants Easy open and closure 6-12 months: Chest 20" Waist 22" Length 18" 12-18 months: Chest 22" Waist 24" Length 19" 18-24 Months: Chest 24" Waist 25" Length 20"