Personalized 21st Birthday Gift Women's Plus Size V-Neck. 21st Birthday Women's Plus Size V-Neck - White has colorful bday balloons and slogan that says Party - 21 Rocks. 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.