BOLANG Water Resistant Laptop Backpack Travel School Casual Daypacks 8859 Size: (L)11.5" x (H)18" x (W)7" ; Weight: 0.74 kg (1.63lbs); Material: Superior quality water resistant nylon; Multi compartments: two front zipper pockets; two side zipper pockets for holding small accessories or water bottles or umbrellas; a main compartment with inside a row of mesh pockets; a padded laptop compartment for 12-17" laptop; a back small secret zipper pocket; A padded compartment in back of the backpack can protect your computer well; Breathable padded back panel and shoulder straps, comfortable to carry; Design to fit the allowed maximum size of most IATA flights, fit in the overhead compartment as well as the under seat storage in flight