Ahyuan Lightweight School Backpack Laptop Bag Travel Hiking backpack 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. Size:Unfold size 22.4 x 12.2 x 9.4 inches (H x W x D), Folds into 9.4 x 6.7 x 3.1 inches (H x W x D) . Capacity: 35 liters. Weight: 7 ounces. It fits into an ultra-compact pouch. Easy to folds up into Small Carry Case. So you can easily pack it in your suitcase for use at their destination as an extra bag for the trip. Adjustable and breathable padded shoulder and strap to meet different requirements for both men and women. Avoid overweight charges, simply unfold from your luggage and use it as a carry on for your excess baggage.