From Eagle Creek, the Packable Backpack features: The Packable Backpack is the traveler’s magic bullet: Palm-sized when packed and weighing less than 6 ounces, this ultralight backpack takes up very little luggage space yet unfurls to become the perfect carryall for impromptu picnics at the beach, outdoor concerts, and farmers’ markets. Its 100% ocean-recycled fabrics are washable and water-resistant. Features: Packs into its own pocket Front pocket key clip Stretch side pockets Security loop prevents pickpocketing Breathable mesh shoulder straps Lightweight fabrics and trims External Dimensions: Packed approx. 6" x 4.5" x 2"  Expanded approx. 17" x 9" x 5" Weight approx. 5.7 oz.   Internal capacity approx. 976 cu. in. / 16 L Materials: 100% Recycled 70D PU Coated Polyester Made without PFCs/PFAS Imported.