Flush your Gill Spray Top with fresh, warm water at the end of the day each time you wear it. Pull the zippers up and down and open and close the snaps to get rid of any salt residue. Shake out any lingering salt.
Fill a basin with warm water and add a few quarter-sized dollops of mild clothing detergent. Wash the top as needed, coaxing out ground-in dirt and sweat stains with gentle rubbing.
Pour a dime-sized amount of detergent directly on heavy stains and rub. Rinse out with warm water and allow the shirt to drip dry on a hanger or over a towel rack.
Fold the top loosely once it's fully dry or hang it up in a closet.