Item-specific measurements are listed in inches

SIZE LENGTH CHEST SLEEVE
0-3M 10.5 6.5 3.5
3-6M 11.5 7 3.75
6-9M 12 7.25 4
9-12M 12.5 7.625 4.25
12-18M 13.5 8 4.5
2T 15 9 5
3T 16 9.375 5.5
4-5T 17 10.25 6
XS 19 10.5 6
SM 21 10.875 6.5
MD 22.5 11.375 7
LG 24 11.875 7.5
XL 25.5 12.375 8
2XL 27 12.875 8.5