FOR U DESIGNS 15/18 inch 900D Laptop Backpack for Women Men Teen Girls Boys 900D polyester Zipper closure MATERIAL-High Quality 900D Polyester+210 Inside Fabric. Excellent stitching technic which makes the backpack strong and durable.Superior Smooth Nylon Double Zipper LOTS OF POCKETS-2*Side Zipper Pouch, 1*Zipper Pocket on The Top (for sunglasses/earphone), 1*Big Pocket on The Back, Inner Front: 1*Zipper Mesh Pouch, Inner Back: 1*laptop/tablet Compartment(13" laptop) + 1*Ipad Compartment + 1*Documents Compartment + 1*Zipper Pocket + 1*Mobile Phone Pocket + 1*Wallet Pocket APPROX DIMENSIONS-Size L: 11.41" L x 18.5" H x 5.51" W; Size S: 10.23" L x 15.7" H x 5.1" W. You can choose the size according to your needs CARRY SYSTEM-Arcuate Shoulder Strap+Good Air Cushion Back Belt. Relieve the pressure on your shoulders and back,make you feel more comfortable PRINTING:Exclusive Fashion 3D Pattern Designs, Superior Sublimation Printing Technology makes the pattern more vivid.But please allow little color difference due to different camera or light environment, thank you! More detial, please view the product description. Have a happy shopping:)