Personalized White Methane Man Youth Long Sleeve T-Shirt. Methane man in white text is a funny design for that gassy special someone who doesn't mind being a human air freshener. Great gag gift at birthdays, bachelor parties and holidays youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)