The 100% cotton TMNT Kids T-Shirt & Pants Set makes the statement that the Teenage Mutant Ninja Turtles have been kicking shell since 1984 but...is a shell something you would really want to kick? I would imagine that being like a stubbed toe but turned up to eleven. I don't think the children will be as hung up on semantics as I am...they'll just enjoy Leonardo, Donatello, Raphael, and Michelangelo on the shirt and the nice plaid shorts. Cowbunga, dudes!