G4Free 10L/15L/20L Hiking Backpack Lightweight Packable Hiking Daypack Small Travel Outdoor Foldable Shoulder BagFOLDABLE: This backpack is easy to fold up into its pocket. Unfold size: 15. 5x9x3. 5inches. Folded size only 7x5. 3inches, easily pack it in your suitcase, backpack, or car and simply unfold from your checked bags and use it as a carry on for your excess baggage to avoid the overweight charge. ENOUGH CAPACITY& LIGHTWEIGHT: One front compartment holds your power bank tissue key or earphone. One main compartment fits your book's Ipad and Umbrella. Two