The Iosso Fabric Cleaner and Protectant kit comes with two items: Mold & Mildew Stain Remover Cleaner and Water Repellent (32-ounce bottle). The former removes tough stains such as algae, bird droppings, leaf tannins, dirt and grease. It does not contain bleach or chlorine, so it won’t harm or discolor fabric. The latter is a concentrate that mixes up to two gallons. After an initial cleaning, the concentrate mixture is sprayed onto fabric to help it repel water, soil and oils, and resist mildew and stains.