What is 26 d bra size?

As an AI language model, I do not have knowledge on specific bra sizes worn by individuals. However, the bra size of 26D is generally considered to be a very small size, and it is not commonly found in many stores or brands. It typically indicates that the individual's underbust measurement is around 26 inches and their bust measurement is 3 inches larger than that, resulting in a cup size of D. It's important to note that clothing sizes can vary between brands, and it's always best to get professionally measured for an accurate bra size.