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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  • Gaia Nancy beige underwired bra with soft lace
    Plus sizes

    Gaia

    Gaia Nancy beige underwired bra with soft lace

    Gaia Nancy beige underwired bra with soft lace

    100,94 zł

    9 rozmiarów

  • Kleo Ariel 3585 half-padded lace underwired bra, cappuccino
    Plus sizes

    Kleo

    Kleo Ariel 3585 half-padded lace underwired bra, cappuccino

    Kleo Ariel 3585 half-padded lace underwired bra, cappuccino

    149,99 zł

    6 rozmiarów

  • Wonder Lace 2446 Sielei Bra – lace, wireless
    Plus sizes

    Sielei

    Wonder Lace 2446 Sielei Bra – lace, wireless

    Wonder Lace 2446 Sielei Bra – lace, wireless

    89,90 zł

    5 rozmiarów

  • Bra Kleo Kerri 338 powder, wide straps
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    Kleo

    Bra Kleo Kerri 338 powder, wide straps

    Bra Kleo Kerri 338 powder, wide straps

    99,99 zł

    32 rozmiary

  • Non-wired padded bikini top OC56 Verde Veronica
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    Verde Veronica

    Non-wired padded bikini top OC56 Verde Veronica

    Non-wired padded bikini top OC56 Verde Veronica

    157,45 zł

    9 rozmiarów

  • Infiore New Piuma Pizzo Wireless Lace Bra
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    Infiore

    Infiore New Piuma Pizzo Wireless Lace Bra

    Infiore New Piuma Pizzo Wireless Lace Bra

    62,99 zł

    4 rozmiary

  • Sielei 20 white cotton front-fastening soft bra
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    Sielei

    Sielei 20 white cotton front-fastening soft bra

    Sielei 20 white cotton front-fastening soft bra

    79,99 zł

    3 rozmiary

  • Sielei Allure 2674 push-up bra in white lace
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    Sielei

    Sielei Allure 2674 push-up bra in white lace

    Sielei Allure 2674 push-up bra in white lace

    84,90 zł

    8 rozmiarów

  • Gaia Nancy black underwired bra with soft lace
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    Gaia

    Gaia Nancy black underwired bra with soft lace

    Gaia Nancy black underwired bra with soft lace

    109,49 zł

    7 rozmiarów

  • Sielei 1568 Fantastic cream padded wire-free bra
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    Sielei

    Sielei 1568 Fantastic cream padded wire-free bra

    Sielei 1568 Fantastic cream padded wire-free bra

    92,41 zł

    9 rozmiarów

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

    Sielei

    Sielei Allure 2674 push-up bra in black lace

    Sielei Allure 2674 push-up bra in black lace

    84,90 zł

    8 rozmiarów

  • Kleo Kerri 338 soft underwired bra, wide straps
    Plus sizes

    Kleo

    Kleo Kerri 338 soft underwired bra, wide straps

    Kleo Kerri 338 soft underwired bra, wide straps

    99,99 zł

    29 rozmiarów

  • Kleo Karina 322.01 push-up bra powder, balconette
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    Kleo

    Kleo Karina 322.01 push-up bra powder, balconette

    Kleo Karina 322.01 push-up bra powder, balconette

    149,99 zł

    12 rozmiarów

  • Meri Kleo Beige Bra - Soft, Wireless Cotton

    Kleo

    Meri Kleo Beige Bra - Soft, Wireless Cotton

    Meri Kleo Beige Bra - Soft, Wireless Cotton

    51,99 zł

    3 rozmiary

  • Conte Day By Day RB4202 smooth spacer bra
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    Conte

    Conte Day By Day RB4202 smooth spacer bra

    Conte Day By Day RB4202 smooth spacer bra

    100,70 zł

    3 rozmiary

  • Sielei 1568 Fantastic black padded wire-free bra
    Plus sizes

    Sielei

    Sielei 1568 Fantastic black padded wire-free bra

    Sielei 1568 Fantastic black padded wire-free bra

    99,99 zł

    9 rozmiarów

  • Lormar Shine: brown wireless padded triangle bra

    Lormar

    Lormar Shine: brown wireless padded triangle bra

    Lormar Shine: brown wireless padded triangle bra

    79,99 zł

    5 rozmiarów

  • Lormar Saten 1900 black plunge bra with light push-up
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    Lormar

    Lormar Saten 1900 black plunge bra with light push-up

    Lormar Saten 1900 black plunge bra with light push-up

    109,89 zł

    12 rozmiarów

  • Bra 1580 Sielei white – smooth microfiber balconette
    Plus sizes

    Sielei

    Bra 1580 Sielei white – smooth microfiber balconette

    Bra 1580 Sielei white – smooth microfiber balconette

    93,99 zł

    7 rozmiarów

  • Sielei Cotton 1454 ecru cotton sports bra
    Last fewPlus sizes

    Sielei

    Sielei Cotton 1454 ecru cotton sports bra

    Sielei Cotton 1454 ecru cotton sports bra

    75,99 zł

    Ostatni rozmiar: 90B

  • Bra 2506 Flower Sielei black – spacer with a seamless band
    Plus sizes

    Sielei

    Bra 2506 Flower Sielei black – spacer with a seamless band

    Bra 2506 Flower Sielei black – spacer with a seamless band

    89,90 zł

    15 rozmiarów

  • Verde Veronica VG54 Velvet Glow gathering bikini top
    Plus sizes

    Verde Veronica

    Verde Veronica VG54 Velvet Glow gathering bikini top

    Verde Veronica VG54 Velvet Glow gathering bikini top

    184,99 zł

    10 rozmiarów

  • Gaia Keto white semi-padded lace bra
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    Gaia

    Gaia Keto white semi-padded lace bra

    Gaia Keto white semi-padded lace bra

    172,04 zł

    15 rozmiarów

  • Lormar Saten 1900 ecru plunge bra with light push-up
    Plus sizes

    Lormar

    Lormar Saten 1900 ecru plunge bra with light push-up

    Lormar Saten 1900 ecru plunge bra with light push-up

    103,30 zł

    12 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.