Drawstring closure Roomy Backpack: SIZE: 17*13*6.5 inches(H*L*W), Capacity: 23L. The main compartment has a separated compartments which can provide roomy and safe space for your laptop(15.6inch) and tablet, power bank, A4 files, clothes and other thing need be protected. The main compartment also has 4 smaller pockets for things you want seperate. 2 elastic side pocket can hold your umbrella, water bottle, etc. Unique Design: Drawstring design on top of the bag, convenience and easy to use. Unique stripe element makes it look no longer monotonous, the front PU and buckle design makes the whole bag fashionable. Durable & Comfortable??Reinforced edges of the main compartment keep the perfect shape of the bag. The multi-layer stitching of the straps makes the overall strap more comfortable and firmer. Stylish, multi function, canvas backpack shows your outstanding temperament. High Quality Material: Thick canvas and PU leather of the external material,the material of the canvas is a bit hard and it perfectly shapes the shape of the bag. PU is not easy to wear, sofe and not easy to crease. Warranty & Support: 30 days money back guarantee. We provide 2 years manufactured warranty on our all products. Professional 24-H customer service staff will solve any problem for you.