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Small breasts come with their own bra problems. Cups gape at the top, underwire pokes, and many “small” sizes are just scaled-down versions of bras designed for bigger busts. The best bras for small breasts fit close to your body, follow your natural shape and feel so comfortable you forget you are wearing them.
Here are six of the best bras for small boobs, from push-up bras to wireless bralettes, plus how to find a bra that doesn’t gape. Not sure of your cup size? Check our bra cup size chart and guide to different boob sizes first.
Our Top Picks at a Glance
- Best overall: Natori Feathers Contour Plunge Bra
- Best push-up bra: Maidenform Love the Lift Push Up & In Demi Bra
- Best t-shirt bra: Maidenform One Fabulous Fit T-Shirt Bra
- Best wireless contour bra: Warner’s Cloud 9 Wire-Free Contour Bra
- Best everyday bralette: Calvin Klein Modern Cotton Bralette
- Best lace bralette: Wacoal Embrace Lace Bralette
The 6 Best Bras for Small Breasts
1. Natori Feathers Contour Plunge Bra: Best Overall
The Natori Feathers is a best seller with a cult following among A- and B-cup wearers. Its lightly padded contour cups are thin enough to look natural, and the plunge cup style works under V-necks. The cups hug small breasts closely, so there is less gaping than with most molded bras.
Best for: everyday wear under fitted tops and low necklines.
2. Maidenform Love the Lift Push Up & In Demi Bra: Best Push-Up Bra
If you want more cleavage, a push-up bra with angled padding pushes breast tissue up and toward the center. This Maidenform demi has removable push-up pads, so you can choose a subtle lift or a full cup size boost.
Best for: date nights, dresses and adding shape.
3. Maidenform One Fabulous Fit T-Shirt Bra: Best T-Shirt Bra
A t-shirt bra with memory foam cups gives small breasts a smooth, rounded shape under thin tops. The One Fabulous Fit line is designed to adjust to your shape, which helps if your breasts are slightly different sizes or not quite full enough to fill a molded cup.
Best for: fitted tees, work shirts and everyday wear.
4. Warner’s Cloud 9 Wire-Free Contour Bra: Best Wireless Contour Bra
Small breasts don’t need underwire for support, so a wireless bra is often the most comfortable choice. This Warner’s bra has soft, lightly lined cups for shape without wires, plus adjustable straps and a supportive band.
Best for: all-day comfort without giving up shape.
5. Calvin Klein Modern Cotton Bralette: Best Everyday Bralette
One perk of small boobs is that you can wear bralettes all day. The Calvin Klein Modern Cotton is soft, unlined and easy to wear for lounging, travel and casual outfits. It comes in a lightly lined version too if you want more coverage.
Best for: weekends, lounging and days when you barely want to feel a bra.
6. Wacoal Embrace Lace Bralette: Best Lace Bralette
Lace bralettes and triangle bras look great on small busts because there is no structure to fill. The Wacoal Embrace Lace is soft and stretchy, and it looks pretty peeking out of a low back or open shirt.
Best for: low-back tops, layering and a matching set.
Common Bra Problems With Small Breasts (and Fixes)
Gaping Cups
Gaping cups are the most common complaint. It usually means the cup is too big or the cup style doesn’t match your breast shape. Try a smaller cup size, a plunge or demi cup, or a stretch lace or unlined bra that molds to you instead of holding its own shape.
Straps That Slip
Narrow shoulders and small frames often go together. Look for adjustable straps that are set closer together, racerback styles or bras with a front closure that pulls the straps inward.
Bands That Ride Up
Even small breasts need a supportive band. If the band rides up, go down a band size. Remember the sister-size rule: if you go down a band, go up a cup to keep the same cup volume, for example from 34A to 32B.
Finding AAA and AA Cups
Many stores start at an A cup. If you wear a AAA or AA, look for brands that make small cups on purpose, or choose bralettes and stretch styles sized S, M and L that fit by band size instead of cup.
Which Bra Styles Work Best for Small Boobs?
- Bralettes and triangle bralettes: comfortable and pretty, best for A and B cups.
- Plunge bras: follow a natural shape and work under V-necks.
- Demi-cup bras and balconettes: lower coverage that won’t gape at the top.
- Lightly padded bras and memory foam cups: smooth shape under t-shirts without looking padded.
- Push-up bras: add volume and cleavage when you want it.
- Unlined bras: stretch lace or mesh that molds to your breast shape.
- Underwired bras: optional on small busts, but helpful for lift and a rounded look.
- Strapless bras: choose a lightly padded strapless bra with a silicone-lined band so it stays put.
Choosing the Right Cup Style and Size
Cup style matters as much as cup size for small busts. A demi or plunge cup style suits shallow or wide-set breasts, while a fuller cup style can work for close-set breasts that are fuller on top. If you sit between cup sizes, look for brands with half-cup sizing, which adds in-between sizes. Bras for small busts and chests are also easier to find online, where brands carry more small cups and band sizes than most stores.
Your cup sizes can change over time with weight, hormones and age, so check your fit each year. Our guide to boob sizes explains all the different cup sizes, from AA up.
Tips for Bra Shopping With a Small Bust
- Measure your band and bust at home, then use a bra cup size chart to find your starting size.
- Try on your starting size plus one sister size up and down.
- Lean forward when you fasten the bra so all breast tissue sits inside the cup.
- Check for gaps at the top of the cup. A little space is normal in a molded cup, but a big gap means the cup is too large.
- Start on the loosest hook so you can tighten the band as it stretches.
Frequently Asked Questions
Do small breasts need a bra?
No. Whether you wear a bra is a personal choice. Many women with small breasts wear bralettes or wireless bras for comfort, shape and coverage rather than support.
What bra makes small breasts look bigger?
A push-up bra with angled padding, or a plunge bra with memory foam cups, adds the most volume. Padded balconettes also give a fuller, rounded look.
Why do bras gape on small breasts?
Most bras gape because the cup is too big or the shape doesn’t match your breasts. Many molded cups are designed for fuller breasts. Plunge, demi and stretch-lace bras fit small breasts more closely.
Curious how your cup size compares and what it means for your clothes? Read our guide to boob sizes, shapes and types, or see our picks for the best bras for large breasts.
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