Personalized Dump Truck 1st Birthday Women's Plus Size T-Shirt. Women's Plus Size T-Shirt - Vintage Red with big number one and yellow and orange dump truck with dirt graphic. This Is How I Roll. 1st birthday gift for boys and girls who love construction and dump trucks. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)