Let me apologize for the long review first, that beging said Duck patio covers beats hands down anything at the big box hardware stores.We recently bought a sectional set for our deck and wanted to protect it instead of lugging the cushions in and out with every change of the weather. I went to the store where we purchased the set and found nothing to fit the sectional, one size only for love seats. Why on earth wouldn't they have covers for products they sold? Thought I'd give it a shot and buy two and hope for the best. No such luck, one was too big for part of the L and the other too small. And the quality wasn't so great for the price. No leg ties, just an elastic non-adjustable band, they went back. Went to my go to Amazon and found love set covers by Duck in more than one size. Had them in two days and between the 54" and 70" our sectional is well protected for less than what I paid for at that box store. All the seams on the Duck covers are well stiched and the lower venting fabric should keep moisture from creating mildew. The covers have strong clips on each corner and adjustable shock cords at each end of the cover to tighten it up. Couldn't have asked for more and they look pretty good for covers. Last night we had rain and high winds, to the point I had branches on my deck 11 feet off the ground. The covers never moved and everything was bone dry this morning when I took them off. Thanks Duck for the great product, looks like a table cover is in order now for the dining set.