Step #1: Turn the fabric inside out.
Turning the shirt inside out will help prevent the outside of the shirt from facing any of the harsh movements inside the machine.
Step #2: Use cold or warm water for your wash cycle.
Washing with cold water is always a safe bet when it comes to cleaning your clothing, especially if it’s with a material you’re unfamiliar with.
Step #3: Use standard detergent.
Simple detergent (without the extra bells and whistles like “tough on stains” or “wrinkle release”) is the best route to go when dealing with most materials.
Step #4: Dry on low heat or air dry.
A low-temperature dry cycle is the best way to avoid shrinkage.