Cosmus Altis 15.6 inches Laptop Backpack is ideal bag for regular office goers to carry Laptop. Its well padded shoulder strap & thick padding on the back ease the burden of a full bag. It has 3 compartments, which includes one detailed organizer compartment having inside zipper pocket & many organizer sections. Laptop compartment is well cushioned to protect your laptop, other main big zipper compartment to carry your books, files/folders and other essentials items. It also has 1 front easy access zipper pocket to keep pens headphone etc & 2 mesh side pockets to carry water bottle and other easy access items. Bottle Lock attached to one of the side pocket protects your bottle from falling down in crowded places and while on riding bike. Material: Reinforce Ripstop 100% Polyester WR fabric with high quality zipper and metal puller.Color: Black Dimension: 12.50x18.50x9.00 (WxHxD) in inches