303 High Tech Fabric Guard is a premium patented formula that restores fabrics lost water and stain repellency. Proven bets to protect textiles against soiling, water-based and oil-based stains. On outdoor fabrics the best choice to stop leaks and to create and maintain enduring water repellency. For all indoor and outdoor fabrics; carpeting, upholstery, marine canvas, fabric convertible tops, tents, breathable rainwear, hiking boots, fine garments including wool, silk and suede.