Wow. I was actually going to purchase material and create one myself. So glad I purchased this instead. The fabric is heavy and substantial, the zipper is handy, smooth and well attached. There is a vent to release moisture. I wasn’t sure about tightening the cord at the bottom, but have a bungee cord around the bottom to prevent gusts during storms as it sit up on a raised deck. It does not come with a rod, but my husband used a small step stool and a broom handle to attach the cover before our first thunderstorm of the year. Well made. Beautiful cover and we are happy with this purchase.