Personalized Monster Truck How I Roll 6th Birthday Youth Long Sleeve T-Shirt. 6th birthday Youth Long Sleeve T-Shirt - White with a cute cartoon red monster truck with giant tires, flame decal and big number 6 with dashed road stripe says This Is How I Roll. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)