I'm still running the original leather seats from SMB West, but keep thinking that I should purchase some covers to keep any potential dog claw issues at bay.
I agree with REF that the Neosupreme covers fit great and look good. I have those in my current F-150 and had them in my last Dodge 2500. They've worn well in both vehicles with lots of dog and general woods activities. My current truck is sporting ShearComfort versions and I think my last truck had the Coverkings. I'm not sure if I could say one brand is better than the other. As far as the bungee cords stretching out, hasn't really been an issue for me (yet?)
A member of a Jeep forum I belong to recommend the Wet Okole brand. These are actually full neoprene with a liner and padding. I was just looking through their webpage and discovered that they have photos of their covers on the back seat in a SMB "50" plan. That's the first time I've ever seen a supplier offer those - might be a serious contender for me. Just not sure if a neoprene cover would be as comfortable as the neosupreme due to the waterproofness of the former.
https://www.wetokole.com/