Durable, functional and oh-so-cool, the glow-in-the-dark Mackenzie backpack features their favorite Star Wars™ characters. It’s made of water-resistant polyester with sturdy zippers and straps, plus plenty of pockets to hold all their things. DETAILS THAT MATTER Made of rugged, water-resistant 600-denier polyester. Adjustable straps that are contoured and padded to ensure a comfortable fit; padded back panel adds extra cushioning. Backpack glows in the dark. Glow-in-the-dark material needs to “charge” under bright light for approximately half an hour to glow properly. Glow lasts for approximately 3 to 4 hours. The Glow effect will become weaker over time because of the constant rubbing. Never Used! Size Large