Why are the bands on my bras different lengths in the same size?

The band size of a bra can be a bit puzzling. Have you also noticed that two bras of the same size sometimes have different length bands? Here’s everything you didn’t know about the band and circumference of your bra.

Bra Sister Sizes + Sister Size Chart

Sports Bras: Sizing & Measuring

The Perfect Bra Size? - Start With the Underband, Not the Cups!

How do you choose the right size? – Evelyn & Bobbie

Do Cup sizes stay the same throughout the back size?

What is Sister Sizing? – Fleur of England

How to Determine Bra Size, Bra Fitting

Not All DD Cups are the same - How Bra Sizing Works - Mysmartypants

Why are the bands on my bras different lengths in the same size?