ZOMAKE Large 40L Lightweight Water Resistant Travel Backpack/foldable & Packable Hiking Daypack(Light Blue) Nylon mesh Coated in a waterproofing High CAPACITY: Larger than other packable backpack! 40L! Large enough to carry what you need in the trip,It's roomy enough for your hammock, clothes,towel, journal,and a couple beers if needed,etc 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 it taking up. DURABLE: 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 and strap to meet different requirements for both men and women Size:Unfold size: 22.8 x 13.4 x 7.8 inches (H x W x D), Folds into: 9.4x 7.8 x 3.9 inches (H x W x D) . Capacity: 40 liters. Weight: 12.7 ounces.1 Main Compartment, 2 Top Pouch (Interior & Exterior), 1 Front Spandex Pouch, 2 Sports Bottle Holder, and Padded Backpack Strap with Chest Clip VERSATILE: Ultra-light, Ultra-durable, Ultra-awesome daypack.Perfect for hiking,occasional travel,day-to-day use,pack beach accessories, suitcase alternative, storing diapers,college, camera compartment, camping and more,and great gift for everyone