3 in 1 multi-purpose Backpack Convertible and hybird: Laptop backpack&Briefcase&Travel Carry on

Large Capacity: 17.7*8.6*12.6 inches, Fits up to 17.3" Laptop, Even can be used as a good travel carry on bag

Professional laptop compartment&Accessory compartment&Special design Cloth compartment: Provides a separate space for your laptop, DIN A4 folders, file folders macbook, Computer Accessory, clothes, shoes and so on

Over the Handle Feature: Back side sleeve allows you to slide it over the standard handle of a rolling suitcase or luggage

Messenger Style: Hidden backpack straps/real leather handle Design With a shoulder strap

Expandable Capacity(6.6 to 8.6 in): The expansion zipper of the briefcase makes it more flexible, the laptop briefcase can be transformed as a duffel bag whenever you need

LIFETIME WARRANTY: We stand behind our products and offer a 100% Lifetime Money Back Satisfaction Guarantee.