When I saw that the Neiwai Barely Zero bra was “one size fits all,” I was skeptical. When I put it on, my doubts vanished. The fabric is buttery soft and feels like a second skin, and the straps provide a gentle lift without digging in. The cups also have a natural shape that looks great under T-shirts. I love that the bra adapted to my shape, and it felt like a perfect fit all month despite my fluctuating cup size. Overall, this is easily one of the most comfortable bras I have ever worn.

What you might not like: The scoop-neck style means you could get a “uniboob” shape under T-shirts. Plus, the neckline shows under certain V-neck shirts, and the fabric is very delicate. I also couldn’t find any reviews from plus-sized consumers, so there’s a chance this bra would not work for a plus-sized buyer with a small bust.

If you’ve ever felt like you’re in between cup sizes, I recommend trying a Third Love bra. I tested the 24/7 Classic T-Shirt Bra in a size 34 A½ and I loved the precise fit — there were zero gaps, and it fit well to my natural shape. The thick band also adds good support without digging into the rib cage, and the straps provide a gentle lift.

The downsides: For me personally, I think the overall bra shape could be more flattering. I also tested this bra in the black color (same size) and noticed that the fit was slightly different, so the exact cut of each bra may vary. Note that Third Love charges $5 shipping unless your order is over $100.

Of all the bras I tested, the Floatley To the T-Shirt Wireless Bra was the product I returned to the most. It has an impressive lift (despite being wirefree) that creates a flattering shape and eases breast pain, and the straps and band don’t dig into the shoulders or back. The padded cups also have a natural, flattering shape under a shirt or blouse. Machine washing this bra was a breeze as well — the material seems more durable than most comparative products.

Unfortunately, this bra has a big downside for people with small busts: It does not come in extra small, which would accommodate A cups and band sizes below 34. The flexible sizing also means that you may not achieve a precise fit. (For me, the size small creates some gaping in the cups.) In addition, Floatley only offers free shipping on orders over $60.

If you’re looking for an everyday bra that provides gentle support and has a barely-there feel, try the Floatley Cozy Wireless Bra. I found this bra easy to pull on, extremely soft and flattering, as the padding creates a natural shape. Sizing also ranges from extra small to 2XL. Overall, this is a great bra for all-day wear.

However, I noticed that the thick straps and V neck are not completely covered by deep V-neck shirts and blouses. This bra is also hand-wash only, so I tried it on a “hand-wash” cycle in my washing machine to see how it would do. The fabric did just fine, and I made sure to lay it flat to dry (I wouldn’t recommend tossing it in the dryer, and the brand doesn’t, either).

While many bras designed for small busts are pricey, there are a few brands that make affordable and high-quality products. I particularly like the Danskin Seamless Deep V Bralette, which you can find at your local Marshall’s or Target at a discounted price. It has gentle to moderate support, flattering cups and soft, semi-stretchy fabric. The deep U-shape in the back and V-neck front mean the bra hides well beneath most shirts and blouses.

Note that the smallest size for this bra is small. However, the bra runs small, in my opinion, and a small fits more like an extra-small. It may be difficult to find this exact style and size at a local Marshall’s or Target, since the products in stock often change.

The Harper Wilde Bliss Base T-Shirt Bra doesn’t just work well for t-shirts; it’s also an excellent everyday and evening bra. The overall design works extremely well for side set breasts, and the lightly lined cups and buttery fabric are a great combination for all-day wear. I also greatly appreciated that the crossback hook lies flat and doesn’t poke into the skin, whether it’s clasped or not.

What you might not like: Shipping is only free on $75+ orders, after any discounts have been applied. As with other popular brands, Harper Wilde doesn’t offer band sizes below 32 or cup sizes below A.

The Harper Wilde Bliss Scoop Bralette might not look like much in a photo, but it’s an incredibly soft, supportive, and flattering bralette for small busts. I love the low-cut swoop design in the front and low, straight-edge design in the back, which makes the design flattering with or without a t-shirt. Plus, it comes in several cute colors.

The downsides: If you’re looking for nipple coverage, you won’t find it here! Your best bet is to add your own sticky or non-sticky nipple covers. In addition, Harper Wilde doesn’t offer free shipping until your order reaches $75.

For cute, whimsical and unique bralettes that show off your personality, check out SWOOP. I love that no matter the print and pattern, the comfortable design of the bralette stays the same. The wide elastic underband also provides support while the adjustable straps help you achieve a good fit. Plus, the fabric wicks sweat. Overall, this is a great pick for anyone who is constantly on their feet.

However, SWOOP bras don’t have nipple coverage (though you might not mind this). I also found the scallop lining to be a little irritating. Note that these bras are expensive, and shipping is $8 unless you spend over $200.

The Harper Wilde Bliss Triangle Bralette is the best of both worlds — it has the comfort of a bralette but the deep V-neck of a traditional bra, so it’s easy to hide under a variety of t-shirts, tops and blouses. The gentle stretch of the material made it easy for me to pull on, and I appreciated the adjustable straps and deep V in the back. In addition, the bralette held up well in the washing machine on a gentle cycle in a mesh bag.

The downsides: This bra provides almost no nipple coverage, though you might prefer the light lining. Harper Wilde also charges a shipping fee on orders under $75.

If you’re looking for a hybrid between a sports bra and a traditional bra, the Evelyn & Bobbie Scoop Bra is an excellent choice. I loved how easy it was to pull on, and it provided a great lift without a strapped-in, “unbreathable” feeling. Plus, the material has anti-odor and moisture-wicking features.

What could be improved: The fabric around the cups remained puckered when I pulled the bra on. This is likely because this bra has flexible sizing from XS to 3XL rather than precise sizing, so the puckering would likely disappear with a slightly larger bust. In addition, I thought the shaping of the cups looked slightly unnatural under a t-shirt.

What I love about the Evelyn & Bobbie Starlette Plunge Bra: This bra has the comfort and lightweight feel of a traditional bralette but the support and nipple coverage of a standard bra. In other words, it’s an excellent hybrid. I love that it also has adjustable straps and a deep V cut, which prevents a “uniboob” and makes it easier to hide the bra under various t-shirts and blouses. The fabric is also soft and smooth, and the lifting technology provides great support.

As with the Evelyn & Bobbie Scoop Bra, however, I thought that the Plunge Wireless Bra also had a slightly unnatural cup shape. The puckering fabric around the cups also didn’t go away after I put the bra on.

I’ve owned this Aerie Real Sunnie Wireless Push Up Bra for three years — I know that’s a long time in bra years, but I’m not throwing out a good bra until it really breaks down! — and not only does it have an amazing lift, a great fit and a comfortable feel, but it has also withstood countless washes (some of which weren’t even on a gentle cycle). While Aerie no longer sells the smooth-fabric version, the lace version of this bra offers all the same features — though it may be more delicate. Note that sizing starts at 30A, whereas most brands start sizing at 32A.

The downsides: Due to the wireless push-up style, there may be a little extra space in the cups on the sides, even if you buy the right cup size. The lace pattern may also show under certain t-shirt and blouse fabrics. Keep in mind Aerie charges a $7.95 shipping fee on orders under $75.

Traditional underwire bras are infamously uncomfortable, even for small busts, but the Aerie Smoothez Full Coverage Bra is designed to fix all of the traditional underwire bra’s issues. It has a thick, buttery-smooth strap that distributes tension and prevents discomfort in any one area. I also love the natural shape of the cups and the gentle lift of the adjustable straps. For several years, this was my go-to bra.

Unfortunately, my Aerie Smoothez Bra did not withstand the test of time — I wore and washed it so often that the underwire became deformed and one of the clasps in the back broke, leaving a scratchy piece of metal. (I spared you the picture!)

Not Tested

If you’re looking for a brand that specializes in flattering bras for small busts, consider Pepper. The online store only offers cup sizes AA, A and B, and band sizes range from 30 to 40. I particularly like the style of Mesh All You Bra because the cup has zero gaps, and the underwire creates a sturdy lift without the usual discomfort. The straps can also be converted to cross-back straps.

However, Pepper’s sizing calculator sometimes gives customers the wrong size recommendation. A bra can create cup gaps because the band size is too big — not because the cup size is too big, so combining a bigger band size with a small cup size (which Pepper often does) might be the wrong solution for you. In addition, Pepper bras are pricey, and bras on sale usually cannot be returned if they fit incorrectly. So, you may be running a big risk by taking a chance on their sizing recommendation. Note that shipping is only free for orders over $100.

Not Tested

It’s not easy to come by bras with a band size below 30, but fortunately The Little Bra Company sizing starts at band size 28. Sizing is also versatile, meaning you can find less-common industry sizes such as 28B and 28C. I also appreciate that the Ava Bra has a lightweight underwire that doesn’t dig into skin and removable push-up pads.

The downsides: It can be difficult to figure out the right bra style, as some are best for close-set breasts, others for far-set. (Though TLBC does specify what each bra type is.) TLBC’s sizing chart may also give you the wrong sizing recommendation.

Not Tested

The best parts of the Pepper MVP Multiway Strapless Bra: It has comfortable yet lifting underwire and a mesh band with elastic straps on either side to keep the bra in place. I also appreciate that it comes with detachable and multiway straps. Cup sizing ranges from AA to B, and band sizing ranges from 30 to 40.

What could be improved: As previously mentioned, Pepper’s sizing calculator may lead you to buy an incorrect size. It would also be helpful if Pepper Bras included C cups and band sizes below 30.