This is printed on a Gildan dry blend unisex sweatshirt. These have a relaxed fit so you could size down or stay true to size.
Sizing
S (0-6), M (8-10), L (12-14), XL (16-18), 2XL(20-22)
Blend
50% Polyester
50% Cotton
Care
Machine wash cold inside out, hang or line dry.