How well are the Kigers holding up? I've actually been running in two different pairs of the Nike Air Zoom Kiger 6 and I wanted to update you all with a durability report. In short they're holding up really well! The first pair here has 200 miles on them. You can see some wear on the lateral lugs at the rear of the forefoot -- this is where my foot usually strikes the ground and thus where most outsole wear occurs for me. As I mentioned in my initial review of the Nike Air Zoom Terra Kiger 6, the lugs seem to wear quite a bit initially, but then it slows considerably as the lugs grow wider as they wear.
Upper durability: As you can see in the photo above, the Kigers above show absolutely no wear at all after 200 miles! The pair below are even more impressive in my opinion -- they have over 350 miles on them and look at that upper. It's still 100% intact with just a bit of dirt and wear from rough Colorado miles. It's quite rare for me to be able to get more than 300 miles out of a pair of trail shoes, so I'm quite satisfied with how well Nike has put together these shoes.
As you can see below the pair with 350 miles on them shows considerably more outsole wear, however this is far better than what I get out of most shoes.
However I will be retiring these now. They are intact and I'm sure some would squeeze even more miles out of them, but the midsole is pretty packed down and I'm satisfied that I've gotten my money out of them at this point.
I'll continue running in the newer pair while anxiously awaiting the release of the Nike Air Zoom Terra Kiger 7!