This is such an awesome shirt!! There is no tag in this shirt but it seems to be a very stretchy polyester fabric with a blue and white checker pattern. It looks like it would fit 12 months - 18 months but please check the measurements below to make sure it would fit! It is in very good condition, front and back are identical although there is one snag that cuts across one of the sides(please see photos), other than that it is in very good condition!
shoulder to hem: 13"