These are great in the summer too because they will keep the hot vinyl from becoming part of your legs. I use sheepskins on my motorcycle seat during the summer when the temps are nearly 120 degrees here and find them to be cool and comfortable. Additionally, the sheepskins add an additional 250 miles to my comfort zone in riding. By using them I am able to comfortably log around 700 miles per day as compared to around 450 without. They had a similar effect for my Jeep.