First, let’s go over the basics. Your bra size is made up of your band size and your cup size. According to British lingerie brand Katherine Hamilton, the band size refers to the size of your ...

The problem? “Today, there are actually closer to 200 sizes available, running all the way up to an N cup,” says Burke. And ...

This is because a 12D and a 16D differ in band size, and the cup size adjusts accordingly. "Your bra size can change as you gain or lose weight throughout different stages of your life.