I bought a new bistro set for my patio and thought I should buy a cover to protect it. I live in Phoenix where we receive the occasional dust storm or rain storm. They aren't often, but when they happen, they can cause some problems. Wouldn't you know it. Just after receiving this item, I covered my patio furniture. The next day, we received one of the heaviest and hardest hitting rain storms. My new furniture was perfectly protected. I did buy the large so I would be able to cover my furniture completely. So VERY GLAD I did! Highly recommend buying this to protect your furniture, even if it is just to keep the furniture clean when not in use.