A cover for an inhalant case includes a tubular fabric portion closed at the top and open at the bottom to be able to receive an inhalant casing with an angled opening extending down on one side, sized to allow the casing spout to protrude therethrough. A cap hood is tethered on one side to an upper edge of the opening and configured to receive and retain a spout cap. A carrier strap is connected to the bottom edge of the tubular portion. The tubular portion may be constructed as a sleeve with a sewn hem, or openable by a hook and loop fasteners to be able to be wrapped and unwrapped on or off the casing.