Choose the size of Atom Pack you have. Designed specifically to fit the shape of your pack, our pack liners provide a simple and reliable way to keep your gear dry. Made from an ultralight, waterproof D50T fabric with bonded seams, they create a waterproof barrier inside your pack, protecting your essential gear from the elements. If you have an Atom 35L, choose the 40L pack liner. If you have a Nanu, choose the 30L pack liner. 30L 76g 2.6oz 40L (inc. Prospector) 89g 3.1oz 50L 93g 3.3oz 60L 104g 3.6oz How to use: Place the liner inside your pack and connect them together using the poppers. This keeps the liner open and secure whilst you pack. Once your gear is loaded, undo the poppers, roll the top of the liner down several times and clip the buckles together to create a secure, weather-resistant seal. Available to purchase with custom orders at any time. If you want a Pack Liner adding to an existing custom order, please email [email protected]