bridesmaid black and white dresses Elegant Crepe Fit Flare Evening Dress Explore our Mermaid Satin Sleeveless Black Long Bridesmaid Dress with a fashionable slit Black and White Mermaid Wedding

At press time, it's unclear which designer is behind the thigh-length look, complete with a sweetheart neckline and thin straps

Shop the Look: If you are picturing elegance for your 21st birthday, channel your inner Blair Waldorf with a bow-accented minidress and a coordinating purse

You could choose a convertible bra with a low, criss-cross back, depending on how low your dress goes, and stick-on bras work particularly well with halter necks if they tie around the neck

I've found some incredible pieces by shopping sales, exploring online boutiques, and even looking at renting options for a one-time wear

How to Dress a Central Line Huzzah, you nailed your central line

These are also an older style this picture is from 2016