“Yarn-dyed fiber has incredibly rich color that holds its vibrancy over time. All backpacks have adjustable PP webbing straps that are contoured and padded to ensure a comfortable fit; padded back panel adds extra cushioning. Features a YKK zipper closure with a Nickel finish. Exterior side pockets to hold water bottle. Our glow-in-the-dark backpacks features a material that needs to “charge” under bright light for approximately half an hour to glow properly.” Pottery Barn Kids Large Size: 13.75" WIDE X 6.75" DEEP X 17" HIGH New with tags