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In addition to disappearing under the cut of your dress or top, the best low-back bras are comfortable, supportive, and available in a variety of sizes. Whether you want a strapless bra suitable for special clothing, a sports bra suitable for exercise, or a super comfortable casual bra, there must be a low-back style that suits your needs.

Although each of these bras has a low back — whether it's a deep V or U shape to match your outfit — they provide varying degrees of support. Many highly rated low-back bras are pull-on, cordless styles with reinforced cups, removable inserts or elastic bands to help the bra maintain its shape and provide gentle support. If you need more support, you may prefer a structured low-back bra with wire and hook-and-eye closures. For maximum versatility, choose a bra with convertible or transparent straps.

Since you want a bra that is as comfortable as possible, the following options are made of soft and stretchy materials, such as nylon and spandex. These fabrics are lightweight, wick moisture, and allow a full range of exercises. Some bras are also seamless to further maximize your comfort.

Whether you want to participate in a special event or want to add a new flagship item to your wardrobe, one of the best low-back bras below will definitely be your best choice. (If you already have a bra that you like, keep scrolling to find a converter that can help convert it to a low-back style.)

This low-back casual bra is decorated with floral lace trim for comfort and elegance. This cordless bra features a deep V cut and soft lined cups on the front and back. This is a pull-on style, but the combination of elastic fiber and polyamide gives the bra enough elasticity to make it easy to wear. In addition, the elastic shoulder straps and hem move with your body to keep you comfortable all day long.

A useful comment: "This bra is amazing! It's much more beautiful than I thought, and it fits right. I will have to get every color of them! Must buy for those with open back or deep neckline. "

Want a low waist shape while exercising? This mid-support sports bra features a deep V-shaped design on the back and is lined with mesh panels for extra breathability and style. It is made of nylon-spandex blend, with moisture wicking function, can help you stay comfortable during exercise. The pull-on bra also has removable cups for extra support.

A useful comment: "This is my favorite sports bra! I wear a small size and it fits perfectly [...] The mesh lining is perfect for working out and sweating. It doesn't make me feel super sick. What's more, the support of this bra is amazing!"

Similar to a corset, this longline bra uses bone and metal wire to provide support, while adopting a low-cut design, which will not be exposed under most open-back dresses. This bra is made of a nylon-spandex blend and uses molded seamless cups. The cup and top strap are glued with silicone to help keep the bra in place. It comes with adjustable shoulder straps that you can add to provide extra support, and the shoulder straps can be converted to racer back and open back styles. The bra is designed with hook-and-eye closures. Most importantly, according to the reviewer, it comes in multiple sizes and has the same support for everyone.

A useful comment: "The bra is great! It's the hardest for me to find a bra. I need to always find something that can hold everything for a long time! This bra has a covering and is [very] smooth and beautiful!"

This cordless bra is made of a soft ribbed nylon and spandex blend fabric to provide gentle support, while being breathable and super comfortable. The back of this lightweight bra features a deep U-shaped design, and the thin shoulder straps and support straps around the ribs provide four-way stretch. The bra also has removable cups. You can choose from seven colors, and the brand also provides matching leggings.

A useful comment: "Soft, comfortable, and easy to wear for hours! My new favorite!"

If you want to look at your back but still need support, this seamless bra with transparent straps is the perfect choice. This bra is available in two colors-beige and mocha-and comes with matching adjustable straps. Transparent straps are also included, so you can replace them as needed. This bra is made of two layers of nylon-spandex blended fabric, which is breathable, stretchy and quick-drying. The molded cups provide gentle support.

A useful comment: "I bought this for a wedding dress with a backless back. It is perfect! It fits well and the transparent straps are perfect for this dress. I love it."

With this conversion belt, almost any bra can be turned into a low-back bra. The nylon elastic fiber strap can be hooked into your existing two-hook or three-hook bra, and the length is adjustable, so you can get a perfect fit. Remember, you need to wrap the shoulder strap around your waist to ensure a fit.

A useful comment: "Because the back of the skirt is low, I need to lower the back of the bra a bit. The converter has 2 hooks, but even if my bra has 3, it works well. The bra It didn't show up all day."