JanSport T501 Superbreak Backpack, Black Sport School Travel Pack Built to last with a 600 denier polyester material One large compartment with zipper closure can store your daily school supplies: textbooks, notebooks, and more. One small front pocket with zipper closure and organizer for small school items: pens, pencils, erasers, and more. Straight-cut, padded shoulder straps and 2/3 padded back panel for comfort.