Threadrock Big Girls' I'm Not A Nerd I'm Just Smarter Than You Fitted T-Shirt Threadrock exclusive; child/tween girls' tee Runs small; form-fitting; fashionable longer length Sizing: S (6/6X), M (7/8), L (10/12), XL (14/16) 100% combed ringspun cotton; fully machine washable Also available in a standard youth tee