MARK RYDEN Travel Backpack for Men, 38L Airline Approved Carry on Backpack with 17.3 Inch Laptop Compartment and USB Charging Port, Waterproof Business Backpack Ideal for Traveling, Working

▶[Dimensions]11.8(L)*17.7(H)*7(W) inch (Normal). 11.8(L)*17.7(H)*10.6(W)inch(Expanded), fits for 17.3 laptop. Design to fit the allowed maximum size of an IATA flights, enough space for your personal stuff for a journey for 5-7 days.
▶[Large and Flexible capacity]Compressed capacity of 26L. Full-expansion zipper creates 30% more packing space26L-38L. A total of 16 pockets in this bag which includes dry / wet separation pockets make your luggage well organized. Open the zipper and buckle on the side and this backpack will enlarge easily.
▶[Multiple carrying backpack] Use as a daily backpack, a flight approved carry on bag or a handbag. The side handle allows the bag switch into a handbag when your shoulders feel tired. strap at back allows backpack to attach on the luggage handle and hide-away backpack straps.
▶[Material] Selection of high-quality water-resistant, scratch-resistant, tear-resistant special nylon fabric and breathable, wear-resistant microfiber synthetic leather. Little rain or ater drop won't penetrate into the bag.
▶[USB port & security pocket] If you connect with a mobile battery in the backpack with a USB port, you can charge your smartphone while carrying it. The backside pocket which close to your back can hold your passport, ID cards, cash and other valuable things in travel and trips.