You wouldn't go outside in bad weather without a jacket, so why would you do that to your barbecue? With the Weber Deluxe Cover, you can protect particular Weber barbecues from dust, dirt, scratches, and water. Thanks to the elastic in the corners, the cover fits easily on all models. It also stays in place when you pull the cord firmly. The cover is made of high-quality, weather-resistant vinyl. Despite this, it's still a wise idea to bring your Weber barbecue (with cover) inside in the winter. Because, honestly, you wouldn't stay outside on dark, cold days either, right?