Enjoy That “Fresh Out The Box White” Feeling with DOUBLE UP Instantly refresh tired looking trainers, shoes and sneakers in as little as five minutes with the DOUBLE UP sneaker pen. Developed in conjunction with life-long sneaker enthusiasts, our shoe eraser markers are designed with a chiselled precision tip to deliver optimal flow control for perfect results with every use. Each pen contains 2oz of white shoe paint and can refresh up to 20 pairs. Flexible, Waterproof and Durable Professional Formula The DOUBLE UP professional-grade shoe cleaning kit is manufactured with a heavy-duty formula that glides easily over rubber, foam, leather, fabric, and textures surfaces allowing you to cover any surface imperfections with ease. The non-toxic whitening pen dries with a matte finish and does not alter the original texture of the shoe for a natural looking, professional finish. Why Are My Sneakers Going Yellow? Noticing that your once bright white sneakers are turning yellow? Why does this happen and what can you do to prevent it? Aside from keeping your fresh creps out of sunlight, dirt and water, there isn't much else you can do to prevent your new shoes from discoloration. DOUBLE UP offers an affordable, convenient, and fast solution – our premium midsole white paint markers quickly mask all signs of yellowing, dirt, scuffs, scratches and surface marks, restoring your favorite pair of sneakers so you can step out with confidence every day. Recommended Use For Best Results Before applying DOUBLE UP, ensure the surface of the shoe is clean and free from dirt or oils. Shake the shoe marker well several times to combine the paint formula. Lightly press the tip of the shoe whitener marker to the surface to initiate the flow of paint. Using the precision tip, apply the paint evenly to the desired area. Let it dry for 15 minutes between applications. Keep DOUBLE UP out of reach from children and away from direct sunlight.