4.5oz. 100% Ringspun Cotton (Heather is 93/7) Infant Shirt Sizes:
3-6M = Body length 12.5in / Body width 10in
6-12M = Body length 13.5in / Body width 11in
12-18M = Body length 14.5in / Body width 12in
18-24M = Body length 15.5in / Body width 13in