Nylon lining Drawstring closure HIGH QUALITY & DURABLE MATERIAL. HIGH QUALITY NYLON LINING makes the backpack soft and comfortable. The rucksack backpack is more high-end with the water-repellent 600D POLYESTER FABRIC, durable and easy to clean. The contoured shoulder straps and back side comes with protective air mesh padded design, easy and comfortable to carry throughout all day. Adjustable padded shoulder straps (45-90cm), tighten and loosen easily. LARGE CAPACITY & STUFF ARRANGED TIDILY. The dimension of the travel laptop backpack is 18.5H x 6.69W x 10.63L, Capacity: 22L. Laptop compartment fits up to 15 Laptop, while the outer compartment can hold 18. The Surface/ Laptop/Charging treasure/Phone/Pen/Notebook/Wallet/Umbrella/Books/Folders can all be taken in. NEW FEATURES. Adjustable Drawstring closure at main compartment, which do secure your contents well. Fashionable nylon lining, with red and white vertical stripes. Magnetic strap closures with metal pin clips. Front pocket with hidden zipper and key clip. 2 SIDE POCKETS so can you can carry water bottle on one side and coffee/ tea on the other. MULTIPURPOSE USAGE & CASUAL STYLE. The retreat backpack can fit your many occasions. It also fit men and women. You can carry it to school, college, hiking, shopping, cycling, traveling, dating, etc.This backpack also comes with a waist bag(black) THE BEST CHOICE OF GIFT : KAUKKO promises 6-months warranty. Exchange or refund (within 60 days). Any problem you have with the bag, please contact us. We will solve the problem. The real color of the bag may differ from the pictures due to different light conditions when taking pictures and different screen setting.