TSA LOCK : TSA accepted luggage lock and flat open design allow you to navigate quickly through the airport security & keep items tidy. TSA customs lock can protect your items from thieves.

INTELLIGENT INCREASE DESIGN : This backpack has smooth zippers on the back side. Once pull on the intelligent zipper, the invisible compartment will show up and equipped with extra of space.

Fast USB charging port design : with external USB port and build-in cable connected with your power bank inside which will charge your phone more easily. (Power bank not included)

Convenient Structure : The invisible card pocket on the shoulder strap, easily taking out the transportation card to pass underground subway gate or pay on bus. The back has a strap which can hold the backpack upright on the luggage's pull rod for easy traveling.

Invisible anti theft design : unique concealed double zipper increases the security of your stuffs inside. One hidden zip pocket for your money , card and phone (any size).

Exterior Dimensions : 18.5 Inch(h) *11.8 inch(l) * 3.2 inches(w), weight: 2.9 ibs. Suit for 15-17.3 inch LAPTOP （included Gaming Laptop）