Loungefly BTTF 40th Anniversary Nylon Full-Size Backpack is commemorating four decades of time-travel adventures, this backpack features iconic imagery from the film series. The durable nylon construction offers longevity, and multiple compartments provide organized storage. Adjustable straps ensure comfort during wear. A functional accessory for fans and collectors alike.​ The movies follow the adventures of time-traveling high-school student Marty McFly and inventor Doctor Emmett Brown as they travel throughout several time periods in the past (1885 and 1955), present (1985), and future (2015). With plenty of room to store your essentials, you’ll be ready to face any challenge in any timeline.