▶[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.

▶[Unique raincoat design] There is a lightweight raincoat in the bottom pocket, open the zipper and you can wear the raincoat in 10s. Don't need to worry about a sudden rain anymore.

▶[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.

▶[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.