36A and 34B — they're both technically a B cup. They're called Sister Sizes (similar, but not the same!). Here's a quick…

Understanding Bra Sister Sizes

Sister Sizes: The Bra Secret Every Person Should Know – Sister

What is my bra size if my band is 30 and my bust is 36? - Quora

WO2017096075A1 - Bra engineering - Google Patents

Beginners Guide to Making Your Own Bras — LilypaDesigns

Understanding Bra Sister Sizes

WO2017096075A1 - Bra engineering - Google Patents

Find Your Perfect Fit: A Guide to Bra Sizing

Bra Sister Sizes Chart, Sister Cup Sizes Chart

What is Sister Sizing? – Fleur of England