I actually asked about this on a different thread, regarding a coat hanger solution for the refreshed Model S. After doing some more research online, I learned the reason Tesla doesn’t sell an accessory for the refreshed MS is because they built in a coat hook on both sides of the rear seats. The current MS Owners Manual confirms this. Here’s a picture of what it shows online and how to use it. They don’t indicate how much weight they can hold, but I assume for blazers, jackets, and dry cleaning, it should suffice.
Hope this helps!
View attachment 844764