Brand Guides, Louis Vuitton, Spring-Summer 2017 May 4, 2017 Louis Vuitton Monogram Empreinte Sorbonne Backpack Bag Reference Guide Presenting the Louis Vuitton Sorbonne Backpack. Louis Vuitton has finally released a backpack made of the elegant Monogram Empreinte leather. The Sorbonne is..by Kristine