I have vintage wrought iron furniture with thick inner spring cushions on my patio. It has become quite a problem to drag them in and out all the time. Finally !  Finally I found covers at Wayfair. They are perfect - heavy duty, large enough to protect cushions, and easy to put on. (I tried them as soon as they arrived). It is supposed to be winter in NJ now so they have gone to the attic til Spring. Can't wait to start using them.
Thank you, thank you!