• Also available on Kohl’s, $54

Since this backless bra has a longline design with spandex-net panels, it’s extremely supportive — even despite the strapless design. For open-back outfits, the sweetheart-neck angles down at the ribs and dips low in the back, so you won’t see anything. This one also features molded, three-section contour cups to keep your chest supported.

Promising review: “Turned out to be exactly what was needed for my wedding gown. Low enough not to show under the lace on the back. Strapless, so it doesn’t show under the lace in front, yet still offering the support needed.”

• Available sizes: 32A — 50DD

• Also available on Walmart, $22

The great thing about this bra is that it works for both plunge dresses and backless ones. All you have to do is add on the low back converter. The straps are totally adjustable, and the bra can be transformed to several different styles. So, if you want to channel your inner pop star and rock both plunge and backless at once, go for it. You'll feel supported and comfortable throughout the night.

Promising review: "I think this bra is genius and I have worn it twice. I have a very low cut, backless, maxi-dress that needs this bra and the moment I put it on it was secure, fit beautifully, and gave me a great amount of support.”

• Available sizes: 2 — 15

• Also available on Nordstrom, $25

If you can’t find any backless bras you like, or if comfort is a top priority, consider choosing a bra that’s so pretty, it looks intentional underneath an open-back outfit. “Rather than wrestling with adhesives and clasps, I usually pick a comfortable yet gorgeous strappy bra, like the Free People Adella bralette,” explained BDG e-commerce writer Maria Cassano. “The combination of lace and thin adjustable straps look great alongside any outfit, and it comes in nine color options, too.”

Promising review: “So I bought this purely for looks. I thought it was a great mix of pretty and sexy. I totally assumed it would be lacy and scratchy as heck. I was extremely pleasantly surprised to find it very comfortable. Like maybe the most comfy bra I own!”

• Available sizes: X-Small — X-Large

• Also available on Walmart, $27

If you’re having a lot of trouble finding a traditional bra, try these cult-favorite Nippies pasties instead. Rather than having to deal with straps, bands, and padding, you simply cover your breasts with the smooth, self-adhering silicone (which is reusable). This provides coverage while remaining totally invisible underneath your outfit. They come in two sizes and three different colors for varying skin tones. No wonder they have over 21,000 reviews and an overall 4.7 stars.

Promising review: "I love these! I live in a humid southern state and even when swearing these do not move! Wash them after wearing with mild soap and let them air dry. I haven’t had them lose their adhesion and just let them air dry! It’s way too hot to wear a bra sometimes so these are definitely it under backless shirts, dresses, and thin tank tops. I love being able to wear shirts with confidence especially if wearing white tops!”

• Available sizes: Small — Large

• Also available on Walmart, $36

If you’d like your bra to be versatile and work with a plethora of options, consider a convertible bra. This multi-way bra converts to a halter, criss-cross, and low back. It's made from stretchy nylon and spandex, has deep-plunge push-up cups, and offers front-adjustable straps, so it'll be comfortable throughout the night.

Promising review: “oh. My. God. [...] It's like a gift from angels. It fits like they say it will and it's comfortable. Like the ‘I forgot I was wearing a bra’ comfortable. And my chest seemed twice as big as it is. [...] It's the best bra I've ever owned. In my entire bra-wearing life.”

• Available sizes: 32A — 42D

• Also available on Neiman Marcus, $36

This backless-dress-approved update on a standard strapless bra features molded cups are supportive and made with underwire, and the adhesive is only on the wings of the bra. One user even said she was able to dance the entire night without it falling off.

Promising review: "I was concerned that the bra might not stay on, but it was perfect. Probably if I was going to walk around in JUST the bra, it could have been an issue, but under clothes, it stayed up just fine. I LOVED that it didn't have a tight band like a strapless bra.”

• Available sizes: A — DDD

• Also available on Walmart, $16

This Maidenform low-back converter is a stretchy, adjustable strap that turns almost any hook-and-eye bra into a low-back style. That way, you can use one that’s already in your drawer — and you know it’ll fit well while providing the support you need. It does this by wrapping around the front of your waist and pulling the back band downwards, so you get several more inches of invisibility underneath an open-back top or plunging dress. (It also comes in a smaller size, too.)

Promising review: “Very skeptical about buying this as I am a 38H. I bought to wear with a low cut back dress. Very comfortable, adjustable. I never felt uncomfortable with this attached to my bra.”

• Also available on Kohl’s, $60

Some dresses are only semi-backless, and if that's the case, and you’re looking for plenty of support, consider this corset a great option instead. It's full coverage and has an extra-low back. It has underwire, lightly-lined cups, and light boning. It's also completely adjustable.

Promising review: "I think this is a great purchase. The fit is tight, the back is low which is exactly what I wanted because I'm wearing this with a low back wedding dress. The cups are a little on the loose side but that's fine in my case because my dress is a little tight and will make up for that. I am very pleased with this bra!”

• Available sizes: 32A to 40D

If you're wearing something thin and want coverage that feels like it's barely there, these reusable adhesive silicone push-up cups are a great option. The bra has over 15,000 reviews and the strong clip in between helps with cleavage — plus it’s reusable and comes in three color options.

Promising review: "Ordered the F size and it absolutely worked. I had no idea I could wear a backless shirt and not feel self conscious about the girls. It stayed on for the whole night even with some dancing! It was a humid Caribbean vacation, so I had low expectations of comfort but it was great. Have been buying other outfits now that I have this bra.”

• Available sizes: A — F

• Also available on Macy's, $29

If you love high necklines and low backs, this bra is an awesome choice for you. It's a double-layered bra, so you'll be supported all night. It also comes with a detachable clear strap, and nude and clear adjustable shoulder straps. No need to worry about sweat making the bra less sticky, either — dry-wicking fabric will keep the piece in place.

Promising review: "Used this when I was on my high school's drill team because I am a 32DD and not wearing a bra would be a nightmare. The back has a thin clear strap and it comes with adjustable clear and nude shoulder straps. It has a surprising amount of support for how thin it is. Wasn't visible through any of my costumes.”

• Available sizes: X-Small — X-Large