Best Bras for Smaller Busts

Discover the best bras for small busts and chest sizes, from comfy bralettes for everyday wear to push-up bras to enhance your natural shape

Content editor

Sarah Lafarge

How to choose a bra for AA-D cup sizes

Begin your search for the perfect-fitting comfy bra with a professional bra fit. M&S is renowned for its expertise in this area, whether you have small boobs or a large bust. If you haven’t been measured in a while, have lost or gained weight, given birth or are nursing, it’s essential that you get professionally fitted to know exactly what cup and back size you are.

Small busts (AA-D cup sizes) require a perfect fit to prevent the bra gaping at the top or the underwires misaligning with the breasts. A great-fitting bra will support breast tissue, which is important even for smaller boobs, and ensure a smooth outline beneath clothing. From everyday soft-cup bralettes to fancy lingerie for getting dressed up, you’ll find a bra for every occasion in our extensive range.

Shopping for a first bra? Check out our buying guide.

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Best bras for smaller busts

£14

A balcony-style bra flatters smaller busts

£16

Padding adds definition to this pretty bra

£18

Floral lace is the perfect finishing touch

£16

Choose a T-shirt bra for smooth lines

Discover our comfy-yet-chic bras and crop tops

Bralettes a great option for small busts and are available in a range of designs, from comfy bralettes and functional sports bras to pretty lace styles that are soft enough even for everyday wear. Satin and lace bralettes, such as this sleek design by Autograph, offer a flattering look on small busts, while crop tops nod to the sports-luxe fashion trend.

And don’t neglect your workout! All breast tissue needs to be supported during high-impact sports to prevent the delicate tissue from stretching, so check out our sports bra buying guide to ensure you’re correctly kitted out when you next hit the track or gym.

Comfy bras for smaller busts

£22

Offers great support with no need for wires

£10

Super comfy and also available in black and coral

£20

This pack of bralettes is a must for every lingerie drawer

£10

A pretty lace bralette is a fail-safe choice

The best bras for enhancing small breasts

If you are shopping for an underwired or moulded bra for small busts, such as an everyday T-shirt bra, pay particular attention to the spacing of the cups. If your breasts are wide-set, which is often the case for smaller chests, avoid bras with touching cups; instead, seek out a style that has a one-inch gap between the cups, to ensure that they’re sitting directly over the breast instead of off-centre. Balcony bras are also a flattering option for small wide-set boobs.

For added oomph, choose a lightly padded or push-up bra to enhance your bust. Wonderbra’s Full Effect push-up bra comes in size 32A upwards.

Glamorous bras for smaller busts

£12

A chic padded bra perfect for every day

£24

This striking design is perfect for date night

£20

Can be worn with or without the straps

£16

With a deep vintage-style underband