Venture Pal 20L Lightweight Foldable Carry On Travel Hiking Backpack Daypacks DURABLE. This Venture Pal Backpack is made with high quality tear and water resistant material, provides extra strength and long-lasting performance with the lightest weight possible. The extra strength provided by the double-layer bottom piece makes it very convenient to carry more load on your journeys. Heavy duty two-way SBS metal zippers across the backpack are convenient to operation on whichever side you prefer. Longevity is further enhanced by bar-tacks at major stress points. COMFORTABLE. Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulder. The length of the shoulder straps is adjustable. MULTI COMPARTMENTS and KEEP THINGS ORGANIZED. This backpack features one main zipped compartment, two zipped front pockets and two side pockets. The main compartment provide enough room (20 Liters) no matter if it's a day trip or a week long journey. Two separators and a small pouch in the main compartment are convenient enough to help you further organize things and hold small accessories. Two side pockets with adjustable buckles are good for holding water bottles and umbrellas. LIGHTWEIGHT(0.5LB) and ROOMY(20Liters). A true space saver. Fold the backpack into its own pouch for storage (no more excess baggage fees), and unfold it when you reach your destination. To avoid overweight charge, simply unfold from your checked bags and use it as a carry on for your excess baggage. COMPACT. Folds into zipped inner pouch to fit anywhere, and unfolds from pouch to backpack in seconds. A must have for every trip.Warranty: Our Promise-lifetime warranty-Exchange, return, whatever it takes.