Here's a size Youth Medium 7-8 (Lucky Charms 60% Cotton 40% Polyester) Lucky Charms T Shirt (Shirt measures approx. 14 across by 19 length) pre-owned in very good shape overall.............Lucky Charms is a brand of breakfast cereal produced by General Mills since 1964. The cereal consists of multi-colored marshmallows and pieces of shaped pulverized oat, each resembling one of several objects or symbols associated with good luck. The packaging and marketing features a leprechaun mascot, Lucky.