SJ112 Ultra-light, Ultra-durable, The backpack is made from highly rip and water resistant nylon fabric, provide strengthen and long-lasting performance with minimal weight. It's roomy enough for your hammock, clothes, towel, journal, and a couple beers if need be, etc. Size: Unfold size 21.65"H x 11.02"W x 9.06"D; Folds into 8.86"W x 7.68"H; 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. When you out and about. It will be a fantastic necessity for not matter outdoor sports or leisure activities in or out of the city. Perfect for day trips, vacation, travel, day hikes, school, camping and shopping.