Harry Potter Hogwarts Interchangeable Backpack/Messenger Bag Review Posted on December 14, 2018 By GraciousAlpacaPosted in Casual DaypacksTagged Backpacks, Bioworld, Clothing, Luggage & Travel Gear, Shoes & Jewelry Officially Licensed Hogwarts Logo on the Front of Bag and Inside Removable Messenger Bag Strap Backpack Straps In Back Pocket 100 Percent Polyester