Personalized Race Car 5th Birthday Women's Plus Size V-Neck. Start your engines! Fun 5th birthday racing car helmet, pistons, and checkered flags. Perfect for the five year old's birthday party. So comfortable you'll want one in every color! These versatile v-neck t-shirts are great to wear to the office or at a weekend BBQ with friends. Available in a wide range of colors to compliment any wardrobe, these shirts are softly shaped to complement a plus sized woman's curves.