You know, it's still a secret

OK, after seeing the commercial a billion times, I went to the web site and watched the video explaining the "patent-pending technology" behind the new Victoria's Secret bra, and I still don't get it. It's - padded? But not really?

Why do I want a padded bra exactly? And why does Tyra Banks, who has really big boobs, need a padded bra? I thought padded bras were for small cups, to make them look bigger. Tyra's got to be at least a C, she doesn't need padding.