What Our Gearhead(R) Experts Are Saying:"I tell anyone who buys a pair of Birkenstocks to grab this alongside them. The cork and suede footbed shows every bit of sweat and grime from daily wear, and a mild cleaner like this handles it without breaking down the material. The sponge that comes with it is key - it helps you build foam and work it into the footbed seams without soaking the whole shoe. Takes five minutes, and the footbed looks almost new."By midsummer, every pair of Birkenstocks tells a story in the footbed. The Birkenstock Footbed and Shoe Cleaner handles the editing. A plant-based foam formula built from sugar tensides and Panama bark extract lifts everyday grime from cork, suede, leather, and synthetic uppers without stripping the material underneath. Shake the bottle, work the cleaner into the included sponge, build a light foam, and rinse - the whole process takes minutes and keeps the footbed looking and feeling like it did on day one.