I have had them in 3 trucks that I drove almost 200K each. They are warm in the winter and cool in the summer. Most people would never believe the latter. I can personally vouch for Rocky Mountain Sheepskin Co
which I had in the last 2 trucks. They are expensive, but very high quality. I think I went for their mid level in quality both times. When I sold my 2007 Chevy, the leather seats looked nearly new after 186K mi. I haven't purchased them for the last truck since the seats are heated and cooled.
Scotty and Kristen, Airedales Dagny and Wyatt
2007 Newmar Mountain Aire 4528, 450 HP ISM, Allison 4000, 8 Lifeline AGM's
2019 F250 King Ranch 4x4 Powerstroke
Roadmaster Blackhawk 2, M&G 2.0 Proportional Brake System