Newborn: length 20 in, bust 18 in, sleeve length 8 in, shoulder 7 in
3M: length 20 in, bust 19 in, sleeve length 9 in, shoulder 8 in
6M: length 21 in, bust 20 in, sleeve length 9 in, shoulder 8 in
9M: length 23 in, bust 20 in, sleeve length 10 in, shoulder 8 in
12M: length 25 in, bust 21 in, sleeve length 11 in, shoulder 8 in
18M: length 27 in, bust 22 in, sleeve length 11 in, shoulder 9 in