How do you get this kind of swim top to stay on https://www.shopblums.com/products/923187-halter?!?

Question

I was given this swimsuit as a gift today https://www.shopblums.com/products/923187-halter/ the suits I have always worn clip like a bra and tie on top. please help! this is the first time I have never seen a suit like this! there is no clip or anything on back.

Answer 1

There is the tie at the back.