Item-specific measurements are listed in inches

SIZE LENGTH CHEST SLEEVE
0-3M 10.5 8 12.75
3-6M 11.5 8.5 13.75
6-9M 12 8.75 14.5
9-12M 12.5 8.875 15.25
12-18M 13.5 9.5 16.5
2T 15 10 18.25
3T 16 10.5 19.5
4-5T 17 11 21
SM 18.5 11.5 23.5
MD 19.5 12 25.5
LG 21 12.5 26.5
XL 22.5 13 27.5