PROTECTIVE Made of heavyduty polyester Thick padding helps keep the teaching materials in good condition A removable bottom padding pad to reduce the risk of bumping Protected by US Design Patent D1085717 Bag only MAIN COMPARTMENT The main section is large enough to keep books notebooks files and other supplies 2 padded sleeves for keeping large binders and 156 laptop 4 inner pockets and 2 top pockets to hold iPad markers and some personal items The straps with buckle to hold the top open for easily getting items FRONT SIDE SECTIONS The front accordion zipper compartment to keep letter size documents organized and protected 2 front pockets and 2 side pockets 1 zipper 1 open provide space for putting pens water bottle and the like EASY TO CARRY Attached with sturdy top handles a detachable dolly and a detachable shoulder strap There are also 2 side padded handles for lifting the bag easily DIMENSIONS 1575 x 9 x 1425 Bag The telescoping handle can be extended to 365 includes base height