Features: Compact: Folds into zippered pocket to fit anywhere. Unfolds from pocket to a useful backpack. Spacious yet Lightweight: With 20L large capacity, weighs only about 180g. Durable: Made of ripstop water-resistant nylon fabric to last long. Comfortable: Adjustable mesh shoulder straps for optimal comfort. Functional: Front pocket and side pockets keep your items well organized. Discounted at only: US$ 15.28