The front has a flat bra that suppresses the bust, reducing gaps in shirt buttons and side openings in jackets caused by uneven breasts. The back has a yoga-style bra structure that supports your back, which tends to curl up, giving you an impression. It's a tank type with a skin color that's hard to see through, so it eliminates the problem of seeing through your bra, and is recommended for days when you want to make your white shirt or suit look stand out.