Plastic garment bags are a definite don’t-they give off undetectable fumes that can severely weaken and damage the garment fibers.
It is essential that the gown be allowed to breathe, so that mold and mildew don’t have a chance to grow.
Purchase a special preservation bag, available at many specialty shops, or use a plain white cotton sheet that has been thoroughly washed.
Cut a hole in the sheet so there is a place for the hanger to go through.
Use a very wide padded hanger to help the gown keep its shape.
If you don’t have a padded hanger, make your own by wrapping a white cotton sheet around a sturdy hanger.
Hang your gown in a dry, dark place in the main living area of your home, not the attic, basement, or garage. Textiles are very sensitive to changes in heat and humidity.
Take your gown out every two years or so to let it air out and inspect it to be sure nothing has happened to it in storage.