Sister Sizes (Explained)
We have worn bras most of our lives, and yet, it seems as though many individuals aren’t fully informed understand them! Here we are today, attempting to provide concise and easy-to-digest information that should help!!
It feels like, up until recently, even understanding how to find “our size” was a mystery. Nowadays, there are “sizing calculators” that can plug-and-play!! All we need to do is take a few measurements, plug in the information, click, and wait for the calculations to occur! Thanks to this information age and how readily-accessible information is at our fingertips, women can now easily understand what size bra they should be wearing (to achieve the best combination of comfort and fit) and the beautiful option of sister sizes!
I’m sure this scenario has happened to you -- You know your bra size and you’re ready to go shopping for some lingerie. BUT OF COURSE, the store you’re shopping at does not have your size. Maybe they’ve run out of the color you want. Perhaps they simply don’t carry your size! (Psst! Not all lingerie vendors produce bras in A, E, F, G, H, or I cups -- mainly because those sizes fall outside of the average realm and can be challenging to sell to for small companies.) Luckily, this is where sister sizes can come in and save the day.
Much like swapping clothes with your sisters, a sister-size bra has all the necessary functions with a different size label. In a bra, the band and cup sizes work symbiotically. The cup volume is an essential factor in a well-fitting bra. Sister sizes are plural for a reason. Each bra size can have multiple sister sizes, although our recommendation is to stick with the two closest sizes.
Repeat after me. If you size up the band, the cup size will go down. If you size down the band, the cup size will go up. (Have you caught on to what’s going on here?) The bra and band work inversely when calculating Sister Sizes.
If you are a 34B and are looking for your sister size, remember that you have options. Either you size up the band and go from a 34 to a 36, or you size down the band and go from a 34 to a 32. Now --- don’t forget that we need to make some adjustments to the cup sizes as well! If you’ve decided to size up to a 36, you need to size down the cup (going from a B cup to an A cup).
Let’s pause a bit to discuss why this makes sense. If you increase the width of the band, you naturally have more fabric/space to work with, so by decreasing the size of the cup, your breasts will sit better/more comfortably.
Okay -- so, what if you decided to size down from a 34 to a 32? Not a problem. Change the cup size from a B to a C, and you’re all set! (With a smaller/tighter band, your breasts may feel suffocated in the same cup size, so by sizing up the cup, you’re giving your breasts more room to settle in.
What have we learned? A size 34B has the sister sizes of 32C and 36A!
We’ve created a chart for (hopefully) easy reference! Please see below:
Use this chart here to make sure by finding your calculated bra size and moving one space directly above or below.
Remember that your bra size may differ slightly depending on the brand or type of bra. Every manufacturer is unique, just as you are. It's quite normal if it may take some trial and error to find the perfect fit. If you are unsure, please buy several sizes! We offer an excellent return/exchange policy, so please don't hesitate. We are here to ensure that you shop wisely and happily!!
Another essential tidbit to consider is that while menstruating, our bodies go through quite the process. Often seeing the effects via physical changes to our bodies (e.x. bloating, weight gain, and etcetera), it can be quite helpful to keep an array of sizes in your wardrobe to help accommodate the beautiful changes that occur.
Pearlle strives to provide comfortable and well-fitting intimates. We believe knowledge is power; With this insight, we’re confident that you’ll be able to find the right bras for your body.