DURABLE & WATERPROOF- Made from highly rip and water resistant nylon fabric, provide strengthen and long-lasting performance with minimal weight.Duarable Abrasion Resistant SBS Metal Zipper Avaliable.LIGHTWEIGHT(0.44 Pounds) & COMPACT- Stuff the bag into its own pocket for storage - no extra fees and unzip it when you reache your destination.ROOMY(20 Liters)- Unfold: 15.7 x 11.8 x 7inches, Fold: 6.7 x 5.9 x 1.2inches. A true space saver avoid overweight charges, simply unfold from your luggage and use it as a carry on for your excess baggage.MULTI COMPARTMENTS- Features a classic shape with several pockets for storage and organization. This backpack has a roomy main compartment, one front pockets to hold small accessories, and two side pockets for water bottle or umbrella.COMFORTABLE & PORTABLE- Adjustable and breathable mesh shoulder straps with sponge padding help to relieve the stress from your shoulder . This backpack is perfect for day trips, vacation, travel, day hikes, school, camping and shopping, and a great gift for everyone.