These are GREAT!  They are perfectly sized for the Crosstown outdoor loveseats I purchased.   I purchased slightly larger than the dimensions of the loveseats and they fit over the couches very nicely. They come with very sturdy and easy-to-use clips to hold them down to the legs of the loveseat.  
Great value too!
My only complaint would be the rather obnoxious "Brand" label on the front of them.