Personalized Smart Cookie Youth Long Sleeve T-Shirt. Youth Long Sleeve T-Shirt - White with cute Kawaii chocolate chip cookie with pink nerdy glasses says she is a SMART COOKIE. Perfect for brainy lasses that wear glasses. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)