The Voyager Hybrid Travel Pack was created to be the ultimate travel companion. In seconds, this multi-functional pack transforms from a backpack to a suitcase. Ideal for the daily commuter or anyone who is on the go. The outer shell is constructed of a water-resistant polyester shell with two front panel accessory pockets and four side compression straps with QR buckle closures.Specifications and Features: Material: Water-Resistant Polyester Shell Size: 19.25" x 13.5" x 5" (Expands to 7") Weight: 2.9 lbs Capacity: 1,229 cu / 21 L - Expanded: 1,889 cu / 30 L 3 Compartments