The duo that keeps on cleaning. Jason Markk's Essential Footwear Cleaning Kit is a trusted pairing of their cleaning must-haves that we always keep on hand. Their 4oz Premium Concentrated Deep Cleaning Solution effectively cleans + conditions all materials with a naturally-derived formula. Paired with Jason Markk's Standard Brush, crafted from durable, firm bristles perfect for midsoles. Safe on all materials. Cleans and conditions. Stiff bristles. Great for leather and rubber. How To Use. Dip brush into bowl of water. Apply liberal amount of solution to brush. Scrub material creating foaming action. Wipe clean with a microfiber towel. Repeat steps as needed. Air dry. Wear and Take Care! Helpful Tips. When cleaning premium leather, suede, cotton mesh and other delicate materials take extra care and be gentle. They highly recommend using Jason Markk's Premium Shoe Cleaning Brush. The softer bristles are better suited for use on delicate surfaces.