Designed specifically to help kids stay organized, these rugged and roomy bags have lots of pockets, exterior straps and gear loops that keep everything in place. Plus, rows of bright blooms bring a colorful splash of fun to school days. Made from rugged, water-resistant 600-denier polyester. Small backpack holds a lunch bag, 2 small notebooks, 2 books, and a water bottle. Large holds a lunch bag, 1 large notebook, 2 small notebooks, several books, and a water bottle. Small and Large backpacks feature an MP3 player pocket cutout for headphone cords. All backpacks have adjustable straps that are contoured and padded to ensure a comfortable fit; padded back panel adds extra cushioning. Exterior straps hold a lunch bag (sold separately) securely in place. Exterior side pockets are designed to hold our Klean Kanteen water bottles (sold separately). Personalization is available for an additional $7.00.