These tire covers are thinner and more lightweight than any other tire cover I have used or seen. As another reviewer put it, it resembles a very thin picnic table cloth, the kind with the felt liner and elastic band around the perimeter. I’ve only had them for two days now, so I can’t say how durable they are. We’ll just have to see if they can hold up UV rays for more than a few months. They are also a dull, but reflective, silver; not quite what is pictured in my opinion. Based on initial impressions, it’s not clear that this was a good buy, but I may be surprised. On the positive side, they did fit my 235/80R17 tires with a bit of stretching.