What Is Sister Sizing?
Finding the perfect bra size can be a challenge. That's why the Lounge in-store fitting room service was created - it aims to find the bra that fits you best, and explain the benefits of a properly-fitting bra. If you're looking for where you can find the closest Lounge store to you, click here.
However, the question of 'What size am I?' can be more complex than a simple calculation. Sister sizing can help you find a bra that truly fits you perfectly.
Sister Sizing Explained
Your sister size is a bra that shares the same cup volume as your usual size, despite having a different back and cup size.
The benefit of sister sizing lies in its ability to offer a range of bra sizes that provide the same cup volume, ensuring a perfect fit despite varying band sizes. In essence, sister sizes represent a selection of options tailored to complement your natural shape, offering the ideal support and comfort for any silhouette.
How Do I Know If I Need Sister Sizing?
It is not uncommon for women who believe they are a specific bra size to discover it’s not quite the perfect fit.
For example, you may think you wear the correct size, but your bra could be too large in the band and too small in the cup. This can lead to your bra riding up your back or digging into your shoulders, and causing discomfort and insufficient support. In this case, your sister size should be smaller in the band and bigger in the cup, to provide firmer support.
How To Calculate Your Sister Size
Calculating your sister size can be challenging - that's why we’ve made a simple-to-follow sister sizing chart.
| 28 Band: | 30 Band: | 32 Band: | 34 Band: | 36 Band: | 38 Band: | 40 Band: |
|---|---|---|---|---|---|---|
| 28A | ||||||
| 28B | 30A | |||||
| 28C | 30B | 32A | ||||
| 28D | 30C | 32B | 34A | |||
| 28DD | 30D | 32C | 34B | 36A | ||
| 28E | 30DD | 32D | 34C | 36B | 38A | |
| 28F | 30E | 32DD | 34D | 36C | 38B | 40A |
| 28FF | 30F | 32E | 34DD | 36D | 38C | 40B |
| 28G | 30FF | 32F | 34E | 36DD | 38D | 40C |
| 30G | 32FF | 34F | 36E | 38DD | 40D | |
| 30GG | 32G | 34FF | 36F | 38E | 40DD | |
| 32GG | 34G | 36FF | 38F | 40E | ||
| 34GG | 36G | 38FF | 40F | |||
| 36GG | 38G | 40FF | ||||
| 38GG | 40G | |||||
| 40GG |
This sister size chart organises sizes with equivalent cup volumes in horizontal rows, each representing a family of sister sizes. For example, if you currently wear a 32E, your sister sizes would include 28FF, 30F, 34DD, 36D, 38C and 40B. This allows for a seamless transition between sizes while maintaining the same fit and support.
Sister sizing is just one of a multitude of ways you can accurately measure your bra size and find a fit that’s comfortable. If you want to learn more about how to measure your bra size, click here.
What Are The Downsides To An Ill-Fitting Bra?
Wearing a bra that doesn’t fit you properly is, unfortunately, more common than you may think. The difficulties of relying on an unsuitable bra can become serious over time. Below are just some of the symptoms you may experience when wearing an ill-fitting bra.
Ill-Fitting Bra Symptoms
- Back pain
- Shoulder pain
- Skin irritation from straps digging into the skin
- Neck pain
- Headaches
- Discomfort
- Bad posture
- Irreversible damage to ligaments, causing pain and loss of elasticity
The aim of your bra is to support your breasts, but if you are wearing an incorrect size, the knock-on effect can be that not only does it fail this mission, but it also impacts the rest of your body.
Lounge understands this issue, and that's why we have this easy-to-follow bra sizing blog to help you find the right size for your bra.
For a personalised fit appointment with a trained expert, visit your local Lounge store. You are so much more than a measurement - our friendly staff will ensure you leave your appointment feeling confident and comfortable in a perfectly-fitting bra.
