Can I do an mba interview without formal attire?

I don't have to wear it, but I'm afraid of failing the interview! If you put it on, the suit will highlight your temperament and figure, giving people a sense of stability! I've had this experience before. At that time, I felt short and naked. I didn't expect everyone around me to wear formal clothes. I stand out from the crowd. As you can imagine, the decisive interview failed. Later, I went to a formal dress shop in school with my classmates and bought a suit before trying it on face to face. You can also have a look. I remember the suit I bought in our school. The brand is called Italian formal dress. They say there are branches in various universities, and the goods are good and the prices are good.