Some brands claim their covers are 100% waterproof. The NEW Garrison Waterproof Collection by Modern Leisure is the only true waterproof grill and patio furniture cover collection on the market today. Through the use of sealed seam binding processes throughout the entire product, these covers are not only uniquely elegant, but they will stand up to the harshest of rain/snowstorms that frequent your leisure environment. The Modern Leisure Garrison Waterproof 6-Burner Grill Cover features waterproof material plus taped seams for a truly waterproof cover. Durable material combined with vents in a neutral heather gray color to match nearly any patio setting with a modern twist.