303 High Tech Fabric Guard restores the water-repelling and stain-repelling properties of the finest indoor and heaviest outdoor fabrics to like-new levels. The professional strength, ready-to-use formula repels dirt, grease, water and oil-based stains for up to 3 years. Compared to silicone-based products, 303 resists and repels better in almost every instance.

Protect such items as vehicle covers, convertible tops, cloth seats/carpets, biminis, flags, marine canvases, and boating enclosures, as well as finer fabrics like silk, wool, leather, and suede. For best results, spray Fabric Guard on new or recently cleaned, rinsed, and dry fabric on a warm day in the sun. Application amount varies, with more being required on a heavy material like canvas, and less on lighter fabric.