"Moby 4Runner" wears CoverKing covers in front, custom fit, "ballistic" fabric, I believe Cordura, and I like them. Wanted same for "Klowder" (new 2017 Prime Advanced) in front, but CK doesn't make them. After spending hours surveying what's available in water-proof / water-resistant *custom*-fit, it seems there are only two choices: Okole (neoprene), and everyone else (a couple with Cordura, but a bunch of no-names with few reviews, excepting makers who use genuine leather). Okole has boo-coo reviews / mentions, including for Prius, and everyone says pretty much the same thing: -- great protection -- easy to clean (at least when using Okole's shampoo), even after spilling ice-cream soda -- fantastic fit and attention to detail, even in console etc. (and confirmed by owners' photos) -- a chemical stink for the first two weeks -- requires a lot of time, sweat, yoga-poses, and profanity for a DIY install But I'm having a hard time confirming to my own satisfaction that there will be no interference with airbags. I wanted to call Okole to discuss this, but thought I should first do my homework about the location of the airbags. This wasn't a problem in Moby, because of the diagrams in the manual, and the little cloth tags (sewn into the seams) which say "SRS Airbag". But it's less obvious with the 2017 Advanced. The diagram on page 36 of the manual (OM47A88U.pdf) shows an airbag #3, "SRS seat cushion airbag", which is drawn to look as if it were contained on or under the driver's head-rest -- but not on the front passenger's side, so I'm guessing that the diagram is actually meant to depict something within the console between the driver's right- and passenger's left- hips. The #4 airbags seem to be in the seam between the seat-back and door-side bolster in each seat. But, unlike in the 4Runner, when I go looking inside the Advanced for any lettering which might confirm these locations, the only thing I find is embossed into the top of the textured hard plastic which houses the seat-adjustment controls.
I went to a Toyota dealer's service department, showed them the diagram in the manual, and asked about this. I was told that this really is, as described in the manual, a "seat cushion airbag". It actually is only on the passenger side. What convinced me was this: if one zooms waaay in on the diagram and looks verrrry carefully, you can see that the driver head-rest is depicted with just an outline, and you are looking *through* that headrest to the passenger seat cushion. At the leading edge of airbag #3 you can see that it meets the seam which runs around the top of that seat cushion. The left-front corner of that cushion is barely visible. Finally, when I went back to the original description in the owners' manual, I realized that I had missed a sentence. The full description of airbag #3 is: "SRS seat cushion airbag Can help restrain the front passenger." If you're ordering seat covers from a manufacturer who claims to know exactly where all the airbags are, and how to make provisions for their proper deployment, don't just take their word for it, no matter how reputable they are. I know of one manufacturer, whom I won't name, who might well have gotten it wrong on the first try, because they didn't already have all the right info before I contacted them.