Camilia works with sister sizing, which is why you saw multiple traditional sizes grouped into one Camilia size. 

 

Sister sizes are bra sizes that have the same cup volume but different band lengths.

When the band size goes up, the cup letter goes down to maintain the same volume and vice versa. 

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For example: a 70D, 75C and 80B all have the same cup volume. They are sister sizes. 

 

At Camilia, we’ve designed our bras around this system. Thanks to our adjustable elastic back band, one Camilia size comfortably fits up to three traditional bra sizes.

This allows for more flexibility, a better fit, and less stress about finding “the perfect number.” 

 

Instead of focusing on outdated measurement labels, we’ve given each size an empowering name.

Because confidence looks better than any letter ever could. 

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HOW TO MEASURE

Even though it’s often explained in the most complicated way, it’s actually very simple. 

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A bra size consists of just two measurements: 

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• Underbust: the circumference of your ribcage, just below your breasts. 

• Overbust: the circumference of your body at the fullest part of your breasts. 

 

The combination of these two measurements determines your bra size and cup volume.

Both are essential because volume isn’t defined by cup letter alone, but by the relationship between band and cup.

 

So, let’s measure correctly! 

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STEP 1

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Wear a non-padded bra that holds your breasts naturally. No push-up magic, we want the real you. 

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STEP 2 — MEASURE YOUR UNDERBUST

 

Measure your underbust. Take a deep breath in, then exhale completely. Once all the air is out of your lungs, measure snugly around your ribcage, directly under your breasts. 

It’s important to measure at your smallest point (after exhaling), because your bra needs to stay supportive even when you breathe out. 

 

This measurement determines the number of your bra size. Always round down to the nearest band size.