Louis Vuitton uses acronyms to size many of their bags. This guide will explain what BB, PM, MM, and GM stand for.
WHAT DOES BB, PM, MM, AND GM MEAN?
BB: The smallest, mini bag size. We aren't actually certain what BB actually stands for, but since it usually refers to a mini sized bag, we are guessing it stands for "baby bandouliere" which means "baby shoulder bag."
PM: Petit Model or "small model" in French.
MM: Moyen Modèle, or Medium Model, for a medium/large sized bag. This is usually the most popular size for bags like the Neverfull.
GM: Grande Model, the largest size.
Using the Louis Vuitton Alma as an example, you can see the differences between the BB, PM, MM, and GM.
Which size is your favorite?