I had some Wet Okole's for my '99 4Runner and they were great! I no longer have that car, but I thought there were well worth it.
I was living in WA at the time and they were great for all sorts of outdoor activities and keeping the seats clean, easy to clean and care for, etc. In fact, the first week I got them, my coworker spilled coffee on the seat and the wet okole cover kept all of the coffee on top and didn't soak any in or get through to the seat.
They can be a PITA to put on, so if you buy them locally, have the shop put them on for you. They used to do that free when I bought my set, but since I lived in WA at the time, I had them shipped to me.
Some of the newer cars have airbags built into the seats and they are not compatible with seat covers. So as long as you don't have those kinds of seats, you'll be GTG>