Dimensions: 40x35x13cm / 16" L x 14" H x 5" W, Large compartment design for books and notebook. The main pocket can fit 15" laptop.Material: High quality canvas & leather, waterproof and scratch-resistant; Lining: cotton cloth. It's 130cm long when the shoulder strap is fully extended.Outer Material: canvasInner Material: CottonClosure: FlapPerfect messenger/laptop/shoulder/general purpose bag. Pretty good quality and classy appearance. There are pockets everywhere and you can fit tons of random stuff in it.The flap is fastened by magnetic snaps, You don't have to spend extra time when opening or closing the bag.The front flap pocket is also awesome! You can use it to store your quick access things such as phone charger, gum, lip balm, extra change and etc. It's a perfect bag for working, short traveling, school and daily using.