Outdoor Products Packable Day Pack, 14.9-Liter Storage Ultra-lightweight daypack packs down to a 6-inch ball for easy packing in suitcases, backpacks, and grocery bags Expands to 14.9-liter backpack with roomy main compartment and zippered accessory pocket for essentials Comfortable, adjustable webbing shoulder straps Durable fabric construction Measures 13.3 x 15.4 x 4.6 inches and weighs 0.22 pounds; backed by the Outdoor Products Plain + Simple Lifetime Guarantee