X2 on not using Wet Okole or any other neoprene cover. Neoprene is not waterproof, it soaks it up like a sponge if not wiped off right away. And neoprene soaks up perspiration too.
When I was ready for new seats for my TJ, I ended up getting mine from PRP Racing that are made here in California. Most of the seats you'll find on eBay are cheaply made in China.