How do bra measurements and sizes work? This makes no sense to me

ThirdLove Bra Size Chart - Find The Perfect Bra For Your Cup Size

What does it mean when a bra band is loose? Does it mean the cup size is smaller? - Quora

What does it mean when a bra band is loose? Does it mean the cup size is smaller? - Quora

How Bra Sizes Work

Bra Fit Guide, Bra Size Quiz

Have you ever thought about how we came up with the idea for bras and made certain sizes that are the “standard sizes”? How did we figure that out? - Quora

Lingerie and Swimwear Measuring Guide

How to Measure Your Bra Size the Right Way

How To Find The Right Bra Size

Tight Bra: Signs of Tight Bra, Ways to Fix Tight Bras, and More

What is the size of a Z cup bra? - Quora

How Bra Sizes Work

How to measure bra size without a bra - Quora

What is a plunge bra? - Quora