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. The best B cup bras are stylish and fit you perfectly to stop gaping cups. You need a comfortable bra that enhances the beauty of your natural breast shape and one that you love to wear each day. The #1 bra we recommend is our bestselling 24/7® Classic T-Shirt Bra designed to give you support and lift so you always look your best. Match it with your favorite ThirdLove underwear for all day comfort.
At ThirdLove, we’ve created a collection of size B bras to match your every outfit and special occasion. You want to be sure there are different styles of bras in your top drawer so you can easily build a comfortable and gorgeous look. Shop our best B cup bras made with premium fabric that feels smooth and soft against your skin. Your boobs deserve to look their best!
ThirdLove’s 24/7® Classic Perfect Coverage Bra provides just the right amount of coverage and support all day, every day. With wide straps and memory foam cups that mold to your shape, this design is the pinnacle of comfort and style. If you’re looking for B cup sports bras, try our Kinetic Adjustable Sports Bra with wireless built-in cups and adjustable straps for the ultimate comfort. Forget about squishing and uniboob - this bra will support your girls in style when you do all kinds of workouts. ThirdLove’s 24/7® Classic T-Shirt Bra is the queen of everyday bras. It offers an unmatched 24/7® fit and comes in half-cup sizes if you’re somewhere in between. This bra will emphasize your natural curves while staying invisible under any outfit you choose.
When looking for a perfect fit, pay attention to how the band feels. Think snug without being too tight. You want your bra to feel like a second skin that doesn’t restrict your movement. Raise your hands to see if the band of the bra rides up. If it does, you might need a different size. Your breasts should fill the cups without spilling over or gaping. Make sure the underwire encircles each breast comfortably without digging into your skin. Finally, the straps should always stay in place. If they keep on falling, adjust them for a better fit.
You need different bra styles for various looks and occasions. B cup plunge bras are perfect for showing off your gorgeous curves. This type of bra will lift your boobs and shape them to create a stunning cleavage. If you are tired of wired bras and want to wear something ultra-comfortable, go for wireless B cup bras. Our designs offer just as much support as the wired ones while shaping and supporting your breasts. Try different bra designs and see what works best for you.
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. We deliver on all that plus we’ve got tons of colors in all the styles you love to wear. Once you’ve found the perfect bra for your B cups, make sure you get a fresh one every season so it wears well and keeps supporting you the right way. At ThirdLove we bring you all your favorite styles with the comfort, fit and details you love in new and limited-edition colors throughout the year.
We’ve got wired bras to help enhance your shape so you look even more amazing. And we’ve also got lots of wireless bra options that are perfect for days when you want to let your natural shape shine or need something cute and comfy to sleep in. Our wireless bras are breathable, supportive, and look great. Smaller busts need love too and these fabrics are just the thing for you. Take our Fitting Room Quiz and find your perfect fitting bra and say goodbye to gaping cups for good.
Your cart is empty
Have an account? Sign in to view your bag.
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 more
Styles in AA-H, including half cups
Earn points for every $$ you spend.
Take our quiz to find your perfect fit
is available over $35