Sumtree 35L Ultra Lightweight Foldable Packable Backpack, Durable Hiking Daypack nylon Durable and Waterproof. The backpack is 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. Roomy(35 Liters) . Dimensions: Unfold: 10.5 x 19.5 x 5.9inches, Fold: 9.8 x 8.6 x 1.2inches. A true space saver. Stuff the bag into its own pocket for storage---no extra fees, and unzip it when you reach your destination. Lightweight(0.72 Pounds). 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, two front zipper pockets to hold small accessories, one internal security zippered pocket for valuable items and two side pockets for water bottle or umbrella. Useful and A Great Gift. This backpack is perfect for day trips, vacation, travel, day hikes, school, camping and shopping, and a great gift for everyone.