KOSOX Large 35L Foldable Travel Water Resistant Backpack/Hiking Daypack/Climbing Backpack Sport Bag Camping Backpack High Capacity: Larger than other packable backpack, roomy enough for your hammock, clothes, towel, journal, Trekking Poles, or a couple beers if needed, etc. Durable: The backpack is made of highly Water and Tear Resistant Nylon material, provide strengthen and long-lasting performance with minimal weight. KAM Zippers and buckles operate smoothly and durable in all sorts of environments. Advanced Design: Prevent slippery breathable S type aglet and Diversion Air Carrying Techology. Making more light, comfort & breathable when using. Adjustable and breathable padded shoulder and strap to meet different requirements for both men and women.Waist tightening adjustment system and high-quality chest buckle make equipment more professional. Unfold Size: 21 x 11 x 9 inches (H x W x D). Folds into: 7.67x 8.85 (H x W). Capacity: 35 Liters. 1 Main Compartment, 1 Front 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.