LARGE CAPACITY: Larger than other packable backpack! 45L! Large enough to carry what you need in the trip It's roomy enough for your hammock, clothes, towel, journal. The packable daypack is an ultralight (0.36kg) but fits a surprising amount of stuff HANDY AND LIGHTWEIGHT: It fits into an ultra-compact pouch. Easy to folds up into small pocket. So you can easily pack it in your suitcase, purse or car and have an extra bag without occupying much space. DURABLE AND COMFORTABLE: The backpack is made from High Quality Water and Tear Resistant Nylon fabric, provide strengthen and long-lasting performance with minimal weight; Adjustable and breathable padded shoulder strap to meet different requirements for both men and women. SIZE AND STRUTURE: Unfold size: 22.8 x 13.4 x 7.8 inch. Folds into: 9x7.5x1 inch pouch. Capacity: 45 Liters. Weight: 0.8 Pound.1 Main Compartment, 2 Top Pouch (Interior & Exterior), 1 Front Pocket, 2 Sports Bottle Holder, and Padded Backpack Strap with Whistle Chest Clip. Nylon lining Buckle closure