Size: 3M Recommended age: 0-3 Months Bust: 44cm/17.32 Sleeve: 22.5cm/8.86 Length: 35cm/13.78 Size: 6M Recommended age: 3-6 Months Bust: 46cm/18.11 Sleeve: 24cm/9.45 Length: 37cm/14.57 Size: 9M Recommended age: 6-9 Months Bust: 48cm/18.90 Sleeve: 25.5cm/10.04 Length: 39cm/15.35 Size: 12M Recommended age: 9-12 Months Bust: 50cm/19.69 Sleeve: 27cm/10.63 Length: 41cm/16.14 Size: 18M Recommended age: 12-18 Months Bust: 52cm/20.47 Sleeve: 28.5cm/11.22 Length: 43cm/16.93 【Occasion】: Daily life home wear school office work vacation traveling hiking etc. Good match with casual pants jeans shorts for a stylish look Baby Back To School Halloween Christmas Romper