We live in Florida so we don't experience severe winter weather, ours is more sun damage and strong storms. Over the years we have tried several different covers, all lasting no more than a couple of years. We're trying a cover from a company called KAKIT now, we got it thru Amazon. The cover is the heaviest we have had. It is well designed and manufactured. We store our Hi-Lo in the up position so this (standard trailer) size works great. The warranty from the manufacture is short but Amazon extends the warranty for a couple of more years. It's the first winter season for it so we'll see how it holds up