We do not advise storing your clothing in plastic coverings when they have been returned to you. These coverings are only meant to shield your items and keep them safe until they make it back home. All fabrics must breathe, so keep your clothing uncovered.
For items such as formal attire like wedding gowns and tuxedos, you can store them in a breathable fabric garment bag to preserve them. Anything that needs to be stored for longer durations, such as seasonal attire, should also be stored in breathable garment bags or a cedar closet. It is not ideal to put your delicate clothing into plastic bags or storage containers.