I find the seat back in my new Prius Prime to be very hot and sticky. Who has a vented aftermarket seat back cushion that they find comfortable and effective?
I put Lamb/Sheepskin seat covers on the front seat (have done so for my last 5 cars). Actually these came out of my last car and were like new after 4½ yrs. They're great in the cold and cool on hot days and breathe well.