I found my female friend's bra, and it's a 26a. How big are her boobs?

What is my bra size if my band size is 27 and cup size is 31 and half? - Quora

Wirefree Minimiser Bra for Big Busts

Padded Stick On Bra, Cup A-C

Here's a comparison for you! Old bra I knew was a bit small, and new bra after getting a fitting. Telling everyone to get fitted now. (NSFW) : r/ABraThatFits

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Your Bra Fit Guide

I found my female friend's bra, and it's a 26a. How big are her boobs?

Bra Sizes Explained: The Meaning of Letters & Numbers

Your Bra Fit Guide