Wudkey 40L Waterproof Travel Backpack, Flight Approved Carry 。?Airline Approved Carry on Backpack: Travel backpack Size information: 18*13*8 inch (L x W x H). Weight:2.4lb. This tsa carry on backpack flight approved and fits under the seat or in the overhead compartment. The laptop compartment on the back and the main compartment can be opened 180 degrees, allowing you to easily pass through security checks without paying extra for the flight. Additionally, the two-way zippers provide added security, making it the perfect personal item for air travel ?40L Capacity with Laptop Compartment: This extra large backpack offers more packing capacity up to 40L for your travel. Main compartment has enough storage room to store 8 to 10 clothes and daily necessities. It also has built-in elastic bands to keep your clothes from falling out. Elasticated side pockets holds a 32oz water bottle and umbrella pretty well. This luggage backpack is the best choice for women and men\'s vacation, weekend getaway, overnight and bussiness trip ?3 Extra Packing Cubes & Wet Pockets: This airport carry on backpack comes with 1 shoe bag, 2 storage bag, One cube bag for toiletries such as makeup, cleanser, etc. One cube bag for underwear, socks, and small clothes neatly inside. The shoe bag is 16.5 inches/42cm long and can hold 1~2 pair of shoes. The built-in dry and wet separation bag to keep your things organized, and you do not worry making your backpack wet. Personal item travel bag convenient for your all travel things