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==Theory== |
==Theory== |
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− | [[File: |
+ | [[File:Breast_volumes.png|thumb|Despite different band sizes, sister sizes always have the same cup volume as each other. Listed volumes are volume per breast.<ref>[http://www.upliftstl.com/1/post/2012/10/d-is-not-a-bra-size.html ''Uplift'': "'D' is not a bra size"]</ref>]] |
+ | [[File:Cup_size_comparison_sister_sizes.png|thumb|Another visualization of cup volume remaining the same across band size.<ref>[http://en.wikipedia.org/wiki/File:Cup_size_comparison.svg ''Wikipedia'': "File:Cup size comparison.svg"]</ref>]] |
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Sister sizes have the same cup volume as each other. The difference of band size simply changes the fit. |
Sister sizes have the same cup volume as each other. The difference of band size simply changes the fit. |
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Revision as of 03:39, 20 October 2012

A woman compares two sister sizes to her correctly-fitting bra (right).[1]
A sister size is a related bra size with the same cup volume of each other. One could, in theory, be used as a substitute for one's true size, but the bra wouldn't fit correctly.[2]
Contents
Theory

Despite different band sizes, sister sizes always have the same cup volume as each other. Listed volumes are volume per breast.[3]

Another visualization of cup volume remaining the same across band size.[4]
Sister sizes have the same cup volume as each other. The difference of band size simply changes the fit.
Typical stores suggest sister sizes to sell their limited inventory to the customer, as opposed to a bra that actually fits. This perpetuates the problem of most women wearing band sizes too large, with correspondingly wrong cup sizes.[2]
Sometimes, two adjacent sister sizes may both fit a woman, since the cup volume is the same, while the band size can be adjusted to a small degree by using the hook and eye fasteners in the bra clasp.[2] Usually, it much less comfortable and flattering, however.
Charts
- Main article: Bra sizing by country
UK sister sizes
26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
26AA | ||||||||||||||
26A | 28AA | |||||||||||||
26B | 28A | 30AA | ||||||||||||
26C | 28B | 30A | 32AA | |||||||||||
26D | 28C | 30B | 32A | 34AA | ||||||||||
26DD | 28D | 30C | 32B | 34A | 36AA | |||||||||
26E | 28DD | 30D | 32C | 34B | 36C | 38AA | ||||||||
26F | 28E | 30DD | 32D | 34C | 36B | 38A | 40AA | |||||||
26FF | 28F | 30E | 32DD | 34D | 36C | 38B | 40A | 42AA | ||||||
26G | 28FF | 30F | 32E | 34DD | 36D | 38C | 40B | 42A | 44AA | |||||
26GG | 28G | 30FF | 32F | 34E | 36DD | 38D | 40C | 42B | 44A | 46AA | ||||
26H | 28GG | 30G | 32FF | 34F | 36E | 38DD | 40D | 42C | 44B | 46A | 48AA | |||
26HH | 28H | 30GG | 32G | 34FF | 36F | 38E | 40DD | 42D | 44C | 46B | 48A | 50AA | ||
26J | 28HH | 30H | 32GG | 34G | 36FF | 38F | 38E | 42DD | 44D | 46C | 48B | 50A | 52AA | |
26JJ | 28J | 30HH | 32H | 34GG | 36G | 38FF | 40F | 40E | 44DD | 46D | 48C | 50B | 52A | 54AA |
26K | 28JJ | 30J | 32HH | 34H | 36GG | 38G | 40FF | 42F | 44E | 46DD | 48D | 50C | 52B | 54A |
26KK | 28K | 30JJ | 32J | 34HH | 36H | 38GG | 40G | 42FF | 44F | 46E | 48DD | 50D | 52C | 54B |
26L | 28KK | 30K | 32JJ | 34J | 36HH | 38H | 40GG | 42G | 44FF | 46F | 48E | 50DD | 52D | 54C |
26LL | 28L | 30KK | 32K | 34JJ | 36J | 38HH | 40H | 42GG | 44G | 46FF | 48F | 50E | 52DD | 54D |
26M | 28LL | 30L | 32KK | 34K | 36JJ | 38J | 40HH | 42H | 44GG | 46G | 48FF | 50F | 52E | 54DD |
26MM | 28M | 30LL | 32L | 34KK | 36K | 38JJ | 40J | 42HH | 44H | 46GG | 48G | 50FF | 52F | 54E |
26N | 28MM | 30M | 32LL | 34L | 36KK | 38K | 40JJ | 42J | 44HH | 46H | 48GG | 50G | 52FF | 54F |
28N | 30MM | 32M | 34LL | 36L | 38KK | 40K | 42JJ | 44J | 46HH | 48H | 50GG | 52G | 54FF | |
30N | 32MM | 34M | 36LL | 38L | 40KK | 42K | 44JJ | 46J | 48HH | 50H | 52GG | 54G | ||
32N | 34MM | 36M | 38LL | 40L | 42KK | 44K | 46JJ | 48J | 50HH | 52H | 54GG | |||
34N | 36MM | 38M | 40LL | 42L | 44KK | 46K | 48JJ | 50J | 52HH | 54H | ||||
36N | 38MM | 40M | 42LL | 44L | 46KK | 48K | 50JJ | 52J | 54HH | |||||
38N | 40MM | 42M | 44LL | 46L | 48KK | 50K | 52JJ | 54J | ||||||
40N | 42MM | 44M | 46LL | 48L | 50KK | 52K | 54JJ | |||||||
42N | 44MM | 46M | 48LL | 50L | 52KK | 54K | ||||||||
44N | 46MM | 48M | 50LL | 52L | 54KK | |||||||||
46N | 48MM | 50M | 52LL | 54L | ||||||||||
48N | 50MM | 52M | 54LL | |||||||||||
50N | 52MM | 54M | ||||||||||||
52N | 54MM | |||||||||||||
54N |
US sister sizes
28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
28AA | ||||||||||||||
28A | 30AA | |||||||||||||
28B | 30A | 32AA | ||||||||||||
28C | 30B | 32A | 34AA | |||||||||||
28D | 30C | 32B | 34A | 36AA | ||||||||||
28DD/E | 30D | 32C | 34B | 36A | 37AA | |||||||||
28DDD/F | 30DD/E | 32D | 34C | 36B | 38A | 40AA | ||||||||
28DDDD/G | 30DDD/F | 32DD/E | 34D | 36C | 38B | 40A | 42AA | |||||||
28H | 30DDDD/G | 32DDD/F | 34DD/E | 36D | 38C | 40B | 42A | 44AA | ||||||
28I | 30H | 32DDDD/G | 34DDD/F | 36DD/E | 38D | 40C | 42B | 44A | 46AA | |||||
28J | 30I | 32H | 34DDDD/G | 36DDD/F | 38DD/E | 40D | 42C | 44B | 46A | 48AA | ||||
28K | 30J | 32I | 34H | 36DDDD/G | 38DDD/F | 40DD/E | 42D | 44C | 46B | 48A | 50AA | |||
28L | 30K | 32J | 34I | 36H | 38DDDD/G | 40DDD/F | 42DD/E | 44D | 46C | 48B | 50A | 52AA | ||
28M | 30L | 32K | 34J | 36I | 38H | 40DDDD/G | 42DDD/F | 44DD/E | 46D | 48C | 50B | 52A | 54AA | |
28N | 30M | 32L | 34K | 36J | 38I | 40H | 42DDDD/G | 44DDD/F | 46DD/E | 48D | 50C | 52B | 54A | 56AA |
30N | 32M | 34L | 36K | 38J | 40I | 42H | 44DDDD/G | 46DDD/F | 48DD/E | 50D | 52C | 54B | 56A | |
32N | 34M | 36L | 38K | 40J | 42I | 44H | 46DDDD/G | 48DDD/F | 50DD/E | 52D | 54C | 56B | ||
34N | 36M | 38L | 40K | 42J | 44I | 46H | 48DDDD/G | 50DDD/F | 52DD/E | 54D | 56C | |||
36N | 38M | 40L | 42K | 44J | 46I | 48H | 50DDDD/G | 52DDD/F | 54DD/E | 56D | ||||
38N | 40M | 42L | 44K | 46J | 48I | 50H | 52DDDD/G | 54DDD/F | 56DD/E | |||||
40N | 42M | 44L | 46K | 48J | 50I | 52H | 54DDDD/G | 56DDD/F | ||||||
42N | 44M | 46L | 48K | 50J | 52I | 54H | 56DDDD/G | |||||||
44N | 46M | 48L | 50K | 52J | 54I | 56H | ||||||||
46N | 48M | 50L | 52K | 54J | 56I | |||||||||
48N | 50M | 52L | 54K | 56J | ||||||||||
50N | 52M | 54L | 56K | |||||||||||
52N | 54M | 56L | ||||||||||||
54N | 56M | |||||||||||||
56N |