Horse Blanket & Pet Apparel Waterproofing Spray (Case of 12) Superior BREATHABLE fabric waterproofing concentrate specifically formulated for horse blankets and pets SUPERIOR RESULTS ON Horse blankets, pet clothing, pet protective gear, pet blankets and bedding. Adds and renews water repellency and revives breathability of canvas and synthetic horse rugs and blankets Preserves the breathability of modern membrane textiles. Resists water absorption due to flex & abrasion damage 473.1ml. (16fl oz.) covers 50-60 square feet per bottle.