Eberlestock Featherweight Rain Cover Doppelganger Winter Large. Like our reversible covers these are designed to cover either the entire pack and a weapon that is being carried or just the pack itself so that you can pull a gun from the scabbard. High quality polyurethane-coated nylon. Specifications for Eberlestock Featherweight Rain Cover: Manufacturer: Eberlestock Gender: Unisex Weight: 4 oz Fabric/Material: Polyurethane-Coated Nylon Quantity: 1 Package Contents: Eberlestock Featherweight Rain Cover Eberlestock J1RCDW: Featherweight Rain Cover Doppelganger Winter Large