Wow! We bought our Weber grill and cover about 5 years ago. At first, I was a little leery of the light weight of the cover, but five years later, it has no rips, tears or any significant signs of aging or reduction in performance. Our Weber grill sits in full sun, at least 50% of the day and has beautifully weathered the sun, rain, over 100 degree temperatures as well as frost. I would love to find out if the company that manufactures these makes patio chair covers out of this material. I have spent hundreds of dollars on chair covers that start falling apart after the first season. The Weber BBQ cover is an outstanding quality product!