A garment with glitter requires special care.
But there are some items of clothing that require a special cleaning method such as hand washing or dry cleaning to maintain their sparkle and shine. No matter what type of clothing you own with glitter---pants, shirt, dress, costumes---all require special attention to retain their sparkle. While they look flashy, the glitter on these garments can fade over time and fall off. However, there are a few steps you can take to help maintain a glitter garment.
Spray your garment with aerosol hairspray. This will help the glitter stay on the garment. However, if you wash the garment, you may need to repeat this step every time you wear the garment.
Wash the garment by hand, inside out.
Turn the garment inside out if you must wash it in the washing machine. It should be washed by itself.