Sister Sizing: The Perfect Nala fit

by Team Nala Feb 23 2023

Time for a little lesson from your Nala fam. 


Today's lesson is on Sister Sizing.

Did you know that every bra size (band and cup) has a Sister Size?


What Is A Sister Size?

A sister size is where the actual cup capacity of a bra is the same, but the band and cup size differs. It’s like a family of alternative bra sizes that have the same amount of space in the cup. 


Finding your Sister Size can really help you find the perfect fit for you. 


How To Find Your Sister Size

If you’re needing to go up a band size, you should go down a cup size, and vice versa.

For example, the sister sizes of a 12E, are a 10F or a 14DD.

And the sister sizes of a 16D, are a 14DD or an 18C.

But if it's too hard to figure out yourself, simply use this table to find your sister size.


Sister Size Chart

Still got questions? Hit us up at