Rinse mud and dirt off the waders with a water hose. Brush lingering mud and debris off the surface with a scrub brush.
Mix 1 cup of oxygen or chlorine bleach with 1 gallon of water.
Wipe the mildew off the waders with a cloth dampened in the bleach mixture.
Rinse the waders with cold water. Lay the waders in sunlight to dry.
Rinse mud and dirt off the waders with a water hose. Brush off lingering debris and mud from the waders with a scrub brush.
Saturate a cloth or sponge in undiluted white vinegar. Scrub the mildew off the waders with a vinegar-saturated cloth.
Wait 10 minutes before rinsing the waders clean with cool water and hang them to dry in sunlight.
Use a garden hose to remove debris from the waders. Scrub lingering debris off the waders with a scrub brush.
Mix 2 cups of hot water with 1/2 cup of borax. Dampen a sponge with the mixture and scrub the waders clean until you have removed all traces of the mildew.
Rinse the waders clean with water and dry them in the sunlight.