Etowah Ultralight Pack Cover - Silicon Impregnated Nylon Ultralight Pack Cover from Etowah Outfitters is the perfect pack cover. It is less than 4oz in weight. It is lighter weight than a garbage bag and the Sil-Nylon is self mendable with the heat from your fingers. Small holes and scratches can be easily fixed with the self mending property of the fabric. Try one is blaze orange for hunting season, or another color for year round.