The topper is one continuous piece and is double sided with a blackout liner in the center. It weighed a ton and I could barely lift it on my own. The side panels are backed with the same blackout liner and they close to block light on the afternoons that they want to lie on their comfy couch and watch a movie.
This client had a friend visiting one day and he said this was the "sexiest" window treatment he has ever seen. I thought that was quite a unique compliment!
Note the back patio as that will soon be the BEFORE of the redo for their outdoor space.