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 daily necessities for an overnight trip; Organizer compartment has many pockets keep your items organized and easier to find; There are many other pockets for different purposes. Men backpack is Good choice for travel. SHOE COMPARTMENT: The shoe compartment is crafted to bottom of large travel backpack carry on to keep the shoes seperately and everything else clean. This shoe storage is wide enough to hold size 10-12 for both lady shoes and man shoes which can also be used as toiletries bags and for other uses; There is two venting hole in shoe compartment, make it keep breathable 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. With a hidden anti theft pocket. DIMENSIONS: The dimension of black backpack is 20 x 13 x 8 inch. And the capacity is 40L. You can carry it onto airplane.The carry on backpack ensure a secure long-lasting usage everyday or weekend,Serve you well as travel personal carry on bag, business trip, outdoor activities backpack