I have never owned outside furniture covers, and hence have always had all my furniture deteriorate after a few seasons.  I decided to do it different this time since I recently invested a large amount on lots of outdoor furniture!  I ordered covers for everything, from sofa and chairs to ottomans and rockers.  They came quickly, and when they did I took them all out of their packaging and tried them on the furniture pieces to make sure they fit.  They all fit perfectly and the material is awesome.  Feels like all furniture will be well protected this winter.