Buying a Spanish National Police T- shirt for child 3 years old or older. in back T- shirt reads: POLICE … typography letter of our National Police, with the spanish flag at the end of the word in three strokes. This T-shirt is a Polo t-shirt replica of the National Police, black color. It is not an approved garment. Made of polyester for adults and cotton for children. If you buy a T-shirt in size online child age tell us in comments section and we will send to you the corresponding size.