Personalized Caffeine Powers Activate Women's Plus Size V-Neck. Caffeine Powers Activate! If your super powers take a cup or two (or five) of coffee to show up, then you have caffeine powers! Funny gift for any coffee lover. 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.