Have you ever found that your usual bra size doesn’t fit when you try on a new bra? This could be due to any number of reasons, and it’s important to understand your sister sizes so you can find an alternative size that does fit. We’ve put together a size chart to help you find similar sizes to try on, so keep reading if you’re a 44 band size!
What Are Sister Bra Sizes?
Sister sizes are the bra sizes that surround your usual bra size. This might mean changing your cup size, band size, or both.
When you try on a new bra and it doesn’t fit, this could be down to any number of reasons, including a new brand or a new style of bra. Understanding your sister sizes will help you make an informed choice as to which other sizes you should try on to achieve the perfect fit.
You can read more about sister sizes in our What Are Sister Bra Sizes blog.
Size Chart For Sister Sizes For 44 Bra Band Size Based On UK Sizing
Check out our size chart below to find your sister sizes. You can either size down, if the bra you’re trying on feels too loose, or size up if the bra you’re trying on feels too tight.
| Sister Size Down | Current Bra Size | Sister Size Up |
| 42A | 44AA | |
| 42B | 44A | 46AA |
| 42C | 44B | 46A |
| 42D | 44C | 46B |
| 42DD | 44D | 46C |
| 42E | 44DD | 46D |
| 42F | 44E | 46DD |
| 42FF | 44F | 46E |
| 42G | 44FF | 46F |
| 42GG | 44G | 46FF |
| 42H | 44GG | 46G |
| 42HH | 44H | 46GG |
| 42J | 44HH | 46H |
| 42JJ | 44J | 46HH |
| 42K | 44JJ | 46J |
| 42KK | 44K | 46JJ |
| 42L | 44KK | 46K |
| 44L | 46KK |
How to Find Your Sister Bra Size
When you’ve identified your current bra size on the chart, you’ll find sister sizes to size up and size down. You can choose which one to try on depending on whether your current bra feels too tight or too loose.
Our general advice is this: if you go up in band size, you may need to go down in cup size. If you go down in band size, you may need to choose a higher cup size.
Please note that this is just a guide. Sister sizing can be quite complicated and you may need to adjust both the cup size and the band size to get the best fit. Sister sizes can be other sizes that surround the initial size. Take a look at our example chart based on UK sizing.
If you would like to chat to our friendly team of bra specialists for more advice on sister sizes and finding a comfortable and well-fitting bra, please don’t hesitate to call us on 01439 798388.
Comfortable, Supportive Bras from AmpleBosom
Here at AmpleBosom, we’ve got a fantastic range of bras in a variety of different styles from the world’s leading brands. Visit our Bras page to browse the collection, and filter by size so you can choose your usual size and your sister sizes.
We have an extensive range of over 250 bras to choose from, stocked in band sizes 28 to 58 and cup sizes AA to N. We’ve got something to suit everyone’s body type (including the fuller figure), lifestyle, and budget.
With so many to choose from, it can be quite daunting to know where to start, but our knowledgeable team is here to help! Give us a call on 01439 798388 and we can help you find your perfect bra.
Additional Advice on Measuring and Fitting
If you need some advice on measuring your bra size, visit our Bra Measuring Guide blog.
We also have a Bra Fitting Guide blog, where you can find hints and tips for making sure your bra fits properly. Here, you’ll also find our collection of bra advice posts, answering a wide range of different questions.
We offer bra fitting appointments here in North Yorkshire. If you’d like some face-to-face help finding your perfect bra, our friendly team will help you choose a well-fitting and comfortable bra from the wide range of bras and underwear we have available.
You can also visit our Size Guide blog to find out more about sizing for the different brands of bras available at AmpleBosom.
Whether you're in need of a complete wardrobe refresh and those comfortable everyday bras, or looking for something special for an upcoming occasion or holiday, we will have something to suit you, whatever your size and budget.
Sister Bra Sizes from AmpleBosom
We have a fantastic team of bra specialists, led by AmpleBosom founder Sally, who are here to answer all your questions and help you find the perfect bra. We can make specific recommendations based on your measurements, so you can buy in confidence. Call us on 01439 798388 or get in touch by dropping us an email.
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Written by AmpleBosom 02/11/2019 and Cesca edited 02/10/2024.