Cutie Baby Baby Girls' Toddler Lace Petti Dress, Flower Girl Dress Small fits-3-6 months (Chest 13in. length 14in. Medium-6-12 months (Chest 13in. length: 16in. Large-12-24 months (Chest 7in. length: 17in. XLarge-3-4T (Chest 15in. length: 18.5in. XX-Large-4-5T (Chest 16in. length: 21.5in.