DescriptionThese clothes are made of soft and breathable fabricthat keeps your baby cool and comfortable all day long.The button closure makes changing babys clothes easy. Please allow slight 1-2cm difference due to manual measurement and a little color variation thanks for your understanding! Attention plz: 1 inch = 2.54 cm If your kid is chubby we recomend choosing a larger size thanks. 0-3months: Length(cm)38 Chest width(cm)203-6months: Length(cm)40 Chest width(cm)216-9months: Length(cm)43 Chest width(cm)229-12months: Length(cm)45 Chest width(cm)2412-18months: Length(cm)47 Chest width(cm)25Thank you and nice day!