Just a boy who loves tractors.
Boys jacket / t-shirt
Would love to have more range for the boys too. 
Start with this jacket and t-shirt.
Sizes: 
3-4yrs (26 inch chest)
5-6yrs (28 inch chest)
7-8yrs (30 inch chest)
9-11yrs (32 inch chest)
12-13yrs (34 inch chest)