Zpacks Slim Dry Bag

The Zpacks Slim Dry Bag is a waterproof liner sized for smaller backpacks rather than a full pack load. It fits lightweight clothing, loose small items or a summer quilt, and its flatter profile also works well for maps, documents or anything else you want kept dry and uncrumpled. No weight or capacity figure is listed, so it's a fit-by-eye purchase - useful as a secondary liner inside a bigger pack or as the main liner in a small daypack, but not sized for a full multi-day clothing and sleep-system load.