Built to keep drinks and goodies cold for overnight adventures, the REI Co-op 18 L folding cooler folds into a tote or cube to meet your carry need—or flat for easy storage. Cube: 13 x 10 x 9 inches; collapsed/flat: 21 x 18 x 1 inches Weight 1 lb 2 oz 3-in-1 design lets you fold into a tote, cube or flat; simply clip and unclip the side toggles as needed Filled with 10 lbs. of ice, it will keep 12 cans cold below 40°F for over 37 hrs. Straight-zip design provides a wide-mouth opening for easy loading and unloading Nonfluorinated durable water repellent (DWR) on shell fabric and liner helps moisture bead up on the surface Large front stash pocket for additional storage Leakproof liner is easy to clean; just wipe out with a soapy sponge, rinse clean and leave open to air dry Padded, adjustable shoulder strap can be removed when not needed