I also have the OEM cover for the Boxster. It works well, fits perfectly, and has a nice soft material on the underside to protect the paint, but it is not waterproof. So if it rains when I have the cover on, then I have remove the cover to avoid having a soggy cover on the car for a few days until it dries out.
I just ordered this cover for the 911SC. Selected specifically for water proofness. Waiting for delivery. I hope its well made.
Custom Car Covers - All Materials and Styles | Coverking
