This is a very sturdy,  waterproof cover for my cantilevered umbrella.  It had a zipper down the side. The hardest part was getting the top over the umbrella and the easiest was zipping up the cover and snapping the locking clip at bottom.  It will make my umbrella last for a LONG TIME!! Looks lovely!!

Update- this went thru Hurricane Sally with 100 mile an hour winds. Just blew over.. no damage.  Awesome