Personalized Racing Themed 1st Birthday Car Women's Plus Size T-Shirt. 1st Birthday race car boys Women's Plus Size T-Shirt - White has this little racer is one bday slogan with a colorful racing car and number 1 logo. art c. Ne Metzger. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)