Roomy backpacks have lots of pockets, exterior straps and gear loops that keep everything in place and feature personality-packed patterns, while our coordinating, reusable lunch bags are designed to keep their food cool and contained. DETAILS Backpack is made from rugged, water-resistant 600-denier polyester. All backpacks have adjustable straps that are contoured and padded to ensure a comfortable fit; padded back panel adds extra cushioning.