Returns & exchanges free for 60 days for all U.S. orders. Please try on the bra to ensure a good fit, making sure to leave the original tags attached. We only accept underwear in unworn condition, with original tags, in its unopened original polybag. Items marked final sale are not eligible for return or exchange. If something’s not right, we can help. Our Fit Experts are available via live chat, or email to answer any questions you might have.
Read moreWomen's 40B Bras
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Shop 40B Bras
Having smaller busts doesn't mean you need to settle for uncomfortable bras that only look good on the rack. You want them to look and feel good on your body. We get it. You don’t want an overfilled bra with tons of bulk. You want one that holds your boobs just right and lifts them naturally without digging in or straps that slip. The best 40B bras will not only be extremely comfortable but fit you perfectly to stop gaping cups while enhancing the beauty of your natural shape.
40B Bra Styles at ThirdLove
Not all 40B bras are created equal; however, no matter the style you are going for, the bra should flatter your shape and support your breasts. ThirdLove offers a variety of women's 40B bra styles, each meticulously crafted to suit different occasions, from our versatile everyday wear, the 24/7® Classic T-Shirt Bra that offers reliable smoothing support, to our Classic Strapless Bra, the best strapless bra for 40b cups and perfect for occasions you want to rock an off-shoulder dress. For the days you are looking for something soft and breathable, you can embrace the soothing embrace of organic cotton with the Organic Cloud Cotton Bra, and for those who prefer a minimized look, our Sculpting Wireless Minimizer offers that sleek look.
40B Colors & Fabrics Offered
If you’re tired of bland-looking 40B bras, we get it. That’s why at ThirdLove we’ve created a variety of chic colors to match your every mood and outfit. Our gentle mocha, moonstone, and lilac hues are suitable for those days when you want to feel light and cheerful. If you want to glam up your look, opt for cobalt, mulberry, and twilight 40 bra colors. Classic black, taupe, and sea salt hues will give you the much-needed confidence boost that will last throughout the day. If you wear 40B bra size, you want it to be comfortable and soft against your skin. Our bras are made with premium fabrics that will hug your breasts like a second skin. Opt for organic cotton and recycled lace fabrics if you have sensitive skin. Other options include silky microfiber, delicate 4-way stretch fabric, airy mesh, breathable nylon, and light polyester.
How Should a 40B Bra Style Fit?
The key to knowing how your size 40b bra should fit lies in comfort and support. Your bra should fit comfortably with the cups, embracing your bosom gently and offering the support and coverage you need. The band should sit snugly around your chest. The straps should be adjusted to your shoulders, ensuring all-day comfort.
Finding the Best 40B Bra
In case you are wondering how to find the best women's 40B bra for you, you are in luck since ThirdLove makes it easy and convenient to shop for bras online. Explore our collection and discover the perfect bra for any occasion. Each of our bras is designed with your comfort in mind, using high-quality material and state-of-the-art design, so find the perfect bra today.
Finding your perfect bra size can be difficult. That's why we created our Online Fitting Room Quiz! No need to give in to bad bras or confuse yourself with sister sizes. Take our quick quiz to find the band and cup size that will best fit your body in minutes. We'll also give you plenty of suggestions based on the styles you love so it's easy to shop for your next favorite bra. Take our Fitting Room Quiz to find your perfect fitting bra and say goodbye to gaping cups for good.
Explore all B cup sizes: 30B, 32B, 32B 1/2, 34B, 34B1/2, 36B, 36B1/2, 38B, 38B1/2, 40B, 42B, 44B, 46B