Bras cup B

Cup B is a difference of about 14 centimeters between the bust circumference and the underbust circumference. One of the most frequently purchased sizes in Poland.

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  • Kleo Daniella 2593.03 bra, padded, wide straps
    Plus sizes

    Kleo

    Kleo Daniella 2593.03 bra, padded, wide straps

    Kleo Daniella 2593.03 bra, padded, wide straps

    119,99 zł

    10 rozmiarów

  • Gaia Sonia semi-padded bra, wide straps
    Plus sizes

    Gaia

    Gaia Sonia semi-padded bra, wide straps

    Gaia Sonia semi-padded bra, wide straps

    118,99 zł

    9 rozmiarów

  • Sielei Allure 2674 push-up bra in beige lace
    Plus sizes

    Sielei

    Sielei Allure 2674 push-up bra in beige lace

    Sielei Allure 2674 push-up bra in beige lace

    84,90 zł

    7 rozmiarów

  • Sielei 2504 black bra – gel push-up

    Sielei

    Sielei 2504 black bra – gel push-up

    Sielei 2504 black bra – gel push-up

    109,90 zł

    3 rozmiary

  • Sielei Fantastic 1368 smooth beige push-up bra

    Sielei

    Sielei Fantastic 1368 smooth beige push-up bra

    Sielei Fantastic 1368 smooth beige push-up bra

    89,90 zł

    3 rozmiary

  • Lormar Ultrashine Golden Underwired Smooth Bra
    Plus sizes

    Lormar

    Lormar Ultrashine Golden Underwired Smooth Bra

    Lormar Ultrashine Golden Underwired Smooth Bra

    75,99 zł

    12 rozmiarów

  • Sielei Cotton 1454 women's black cotton sports bra
    Plus sizes

    Sielei

    Sielei Cotton 1454 women's black cotton sports bra

    Sielei Cotton 1454 women's black cotton sports bra

    75,99 zł

    4 rozmiary

  • Precious Sielei underwired balconette bra with embroidered tulle
    Plus sizes

    Sielei

    Precious Sielei underwired balconette bra with embroidered tulle

    Precious Sielei underwired balconette bra with embroidered tulle

    93,21 zł

    4 rozmiary

  • Gaia Keto semi-padded lace bra black
    Plus sizes

    Gaia

    Gaia Keto semi-padded lace bra black

    Gaia Keto semi-padded lace bra black

    209,90 zł

    14 rozmiarów

  • Kinga Allana SC-1185 Tulle bra with floral embroidery
    Plus sizes

    Kinga

    Kinga Allana SC-1185 Tulle bra with floral embroidery

    Kinga Allana SC-1185 Tulle bra with floral embroidery

    225,90 zł

    12 rozmiarów

  • Yolie Kinga - soft lace bra
    Plus sizes

    Kinga

    Yolie Kinga - soft lace bra

    Yolie Kinga - soft lace bra

    229,00 zł

    28 rozmiarów

  • Kinga Sand PU-1177 Push-Up Bra with Lace and Mesh
    Plus sizes

    Kinga

    Kinga Sand PU-1177 Push-Up Bra with Lace and Mesh

    Kinga Sand PU-1177 Push-Up Bra with Lace and Mesh

    179,93 zł

    11 rozmiarów

  • Gaia Nancy white soft lace underwired bra
    Plus sizes

    Gaia

    Gaia Nancy white soft lace underwired bra

    Gaia Nancy white soft lace underwired bra

    100,94 zł

    11 rozmiarów

  • Women's semi-padded bra Contour Bra BC-1241 Kinga, beige (skin)
    Plus sizes

    Kinga

    Women's semi-padded bra Contour Bra BC-1241 Kinga, beige (skin)

    Women's semi-padded bra Contour Bra BC-1241 Kinga, beige (skin)

    163,49 zł

    29 rozmiarów

  • Sielei Fantastic 1590 push-up bra with convertible straps
    Plus sizes

    Sielei

    Sielei Fantastic 1590 push-up bra with convertible straps

    Sielei Fantastic 1590 push-up bra with convertible straps

    88,39 zł

    9 rozmiarów

  • SieLei white bra made of pure cotton, wireless, with lace
    Plus sizes

    Sielei

    SieLei white bra made of pure cotton, wireless, with lace

    SieLei white bra made of pure cotton, wireless, with lace

    59,99 zł

    7 rozmiarów

  • Naviale Chicago LU024-06 underwired soft bra

    Naviale

    Naviale Chicago LU024-06 underwired soft bra

    Naviale Chicago LU024-06 underwired soft bra

    78,60 zł

    4 rozmiary

  • Bra 1580 Sielei black - smooth microfiber balconette
    Plus sizes

    Sielei

    Bra 1580 Sielei black - smooth microfiber balconette

    Bra 1580 Sielei black - smooth microfiber balconette

    93,79 zł

    6 rozmiarów

  • Kleo Ariel 3585 Black Semi-Padded Bra with Lace

    Kleo

    Kleo Ariel 3585 Black Semi-Padded Bra with Lace

    Kleo Ariel 3585 Black Semi-Padded Bra with Lace

    149,99 zł

    6 rozmiarów

  • Lormar Shine: semi-padded cream wireless triangle bra

    Lormar

    Lormar Shine: semi-padded cream wireless triangle bra

    Lormar Shine: semi-padded cream wireless triangle bra

    79,99 zł

    6 rozmiarów

  • Verde Veronica JB56 Padded Swimsuit Top
    Plus sizes

    Verde Veronica

    Verde Veronica JB56 Padded Swimsuit Top

    Verde Veronica JB56 Padded Swimsuit Top

    141,43 zł

    10 rozmiarów

  • Sielei Cotton 1454 white cotton sports bra
    Plus sizes

    Sielei

    Sielei Cotton 1454 white cotton sports bra

    Sielei Cotton 1454 white cotton sports bra

    75,99 zł

    4 rozmiary

  • Sielei 2504 Beige Bra – Push-up with Gel Filling

    Sielei

    Sielei 2504 Beige Bra – Push-up with Gel Filling

    Sielei 2504 Beige Bra – Push-up with Gel Filling

    109,90 zł

    4 rozmiary

  • Gaia Keto lace semi-padded bra beige
    Plus sizes

    Gaia

    Gaia Keto lace semi-padded bra beige

    Gaia Keto lace semi-padded bra beige

    189,24 zł

    7 rozmiarów

What to look out for

In practice the letter describes the difference between two measurements, not the absolute size of the breast: the same cup on a 70 band and on a 90 band is a completely different volume.

What else is worth checking

Most styles work well in a B cup: moulded under fitted clothes, balconettes under wide necklines, soft-cup for every day. If the cup wrinkles at the top, try the same band in an A; if the breast spills over the top, move up to a C.

Fabrics and comfort

Check your size with two measurements: take the underbust measurement firmly, breathing out, and the bust measurement loosely, at its widest point. The difference gives the letter, the underbust measurement - the number. Every size has its sister sizes: the same bust also fits one band smaller with the next letter up, and one band larger with the next letter down. If your size is temporarily unavailable in a particular model, that is the first place worth looking.

Delivery and returns

The underbust band should sit horizontal and pull away about two fingers, the underwire should rest on the ribs and not on the breast, and the straps should not leave marks. Wash in a laundry bag at 30°C with the hooks done up, and dry flat. Orders over PLN 199 ship free, and you have 60 days to return your order.

The letter B corresponds to the bust measurement exceeding the band measurement by 13-15 cm. We have gathered models in this letter in every band size we stock, so that styles can be compared without keeping an eye on the band number.

Remember that the letter on its own says nothing about breast size - a B on a 70 band is a completely different volume from a B on a 95 band. That is why changing the band means adjusting the letter as well: going one band down means going one letter up.

You will find specific numbers in the size collections, for example 75B and 85B. Before you decide, measure yourself and check the numbers against the size guide.

At this volume it is usually the shape of the cup that decides, not its capacity. A cup moulded from a single piece of foam gives a smooth, predictable line under clothes and works well under knitwear. A seamed cup sits more naturally. A push-up moves volume down and in, while a non-wired model keeps the natural shape and is the most comfortable at home.

One more tip: in this letter it is particularly easy to confuse fit with style. If the cup is right at the bottom but wrinkles at the top, the problem is the cut, not the size - simply move from a full cup model to a balconette or a half cup.

Frequently asked questions

How many centimetres of difference does a B cup mean?

Around 13-15 cm between the bust measurement and the underbust measurement.

Is a B cup always the same volume?

No. On a larger band the same letter corresponds to a larger cup volume.

Which style should I choose in a B cup?

For a smooth line under clothes - a moulded cup; for a natural shape - a seamed cup or a non-wired model.

How do I change size when the band is too loose?

Drop one band size and choose one letter up, in other words the sister size.