If your bra is falling down, it might be too narrow, so try a wider band that will make up for the support of those missing straps. Your bra band is too loose. A strapless bra does things a little differently than your regular bra, and that means you need to size it a little differently. ... Your bra is worn out.

How do you keep a bandeau from falling down?

1. Add a layer. One way to keep a strapless dress or top from slipping is by layering it with a shirt. A body-hugging tank top or shirt can act as a fixture to make sure that your bandeau romper or blouse stays in place.

How do I keep my tube top from falling down?