Wealers Hiking Lightweight and Compact Backpack and Hiking Daypack and Climbing Camping Outdoor Sports Travel Backpack Bag and Backpack for Travel Hiking Climbing Running Camping Cycling Outdoor Sports Larger than other packable backpack! 30L! 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 Dimensions: 30L: Open Size: 10.2* 8.3* 17.3 inch (L*W*H); Folding Size: 5.1* 5.1 inch (L*H) Multi Compartments. Features a classic shape with several pockets for storage and organization. This backpack has a roomy main compartment, one front zipper pocket to hold small accessories, one internal security zippered pocket for valuable items and two side pockets for water bottle or umbrella. 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 Folds into zippered inner pocket to fit anywhere. Unfolds from pocket to backpack. Must have on every trip.