The dress is perfect for party, wedding, pageant, birthday or other special occasions. The size is one of the most important things, so please tell us your baby's sizes first when you buy. The dress is made manually by top sailor. If you have any question please do not hesitate to contact us. Questions will be answered within 24 hours. Size Chart Size US 2T, Age:2 Years, Height: 33-35" Weight: 24-29" Size US 3T, Age:3 Years, Height: 35-38" Weight: 29-33" Size US 4T. Age:4 Years, Height: 39-41" Weight: 33-37.5" Size US S4, Age:3-4 Years, Height: 42-44" Weight: 37.5-42" Size US M5, Age:4-5 Years, Height: 45-47" Weight: 42-46" Size US L6, Age:5-6 Years, Height: 48-49" Weight: 46-53" Size US S7, Age:6-7 Years, Height: 50-52" Bust:26-27" Waist: 22.5" Size US S8, Age:7-8 Years, Height: 53-54" Bust:27-28.5" Waist: 23.5" Size US M9, Age:8-9 Years, Height: 55-56" Bust:28.5-29.5" Waist: 24.5" Size US M11, Age:10-11 Years, Height: 57-59" Bust:30-31" Waist: 25.5" Size US L12, Age:11-12 Years, Height: 60-62" Bust:31-32" Waist: 26.5" Size US L13, Age:12-13 Years, Height: 63-64" Bust:33-34" Waist: 27.5"