Amazon.com: LOVEVOOK 40L Travel Backpack for Women & Men 。?【MULTI-COMPARTMENT】 Travel backpack has a separate laptop compartment that it could hold 17 Computer and protect laptop from moving; Main compartment with double zippers has enough storage room to store your school books or daily necessities for back to school or an overnight trip; Organizer compartment with various small pockets keep your items organized and easier to find. ?【WET POCKET】Wet bags are made of high-density waterproof material to help you separate wet and dry items, and if you have wet clothes or towels, you can put them in the wet bag. There are so many other pockets for different purposes. It’s ideal for women, weekend traveler, or occasional vacationer. ?【FUNCTIONAL & SAFE】USB interface with built-in cable design, great convenience for charging your electronic devices via connecting your own power bank. Comfortable breathable back design gives you maximum back support; A luggage strap allows the travel backpack to securely slip over the handle of any rolling luggage for hands-free transport, easier carrying. A hidden anti theft pocket on the back protect your valuable items from thieves. ?【Versatile Backpack】The dimension of black backpack is 18.5 x 12.2 x 7.3 inch. And the capacity is 30L. You can carry it onto airplane. The carry on backpack ensure a secure long-lasting usage in everyday life and on weekends, Hybrid (backpack/duffel bag/shoulder bag/travel bag) conversion.