Mine has TruVision wiper arms and blades. I had a heck of a time finding replacements but finally found them at :
Wiper Technology (Part of Diesel Equipment Co.) Greensboro, NC 1-877-307-7059
These people do not have a website but are very helpful on the phone and you will be as surprised at the price as I was. If you call them, they will ask you for the 7 digit "TruVision Kit number" which is on a sticker on the wiper motor behind the front cowling. example - 0930928.
When we bought our Cayman (we are the second owners) both wiper blades were shot. Then on our second trip, the drivers side arm broke off near the base. A couple years later the drivers side arm broke off at the same place. We replaced them with the correct Truvision arms/blades and everything has been fine since.