Durable Canvas Messenger Bag Crossbody Bags Backpack Made in USA Canvas and genuine leather material and lining is polyester cotton Internal structure:Cell phone pocket,zippered side pockets, document bag Adjustable shoulder strap for easy and comfortable carrying. Size:37cm(14.6" length) x 28cm(11.42" height) x 8cm(3.15" width) You can put A4 books, 13" laptop, ipad, glasses, wallet, keys, cell phone, umbrella and document in the bag