I recently purchased a pair of new soles for my Korkers wading boots. My previous pair of boots had studded felt soles, and I loved the secure footing they provided on the Clinch and South Holston rivers. When Daniel at LRO told me about the new soles being released, I just had to have a pair. The new soles have rubber grippy protrusions along with metal studs. This allows the boot to dig into the Didymo covered rocks and ledges and therefore provides better grip.
I wore these boots during my last outage on the Clinch, and my footing was much more positive than when I was using the traditional felt soles that come with the boots at the time of purchase. I was shoal hopping a couple of times since I typically fish in and around deeper water that most people ignore. My foot did not slip once on any of the rock snot covered rocks. Also, walking into the river requires scurrying down a muddy cow trampled bank, and the design of these soles allows for excellent grip outside of the water as well. I can see these soles coming in very handy for people who do a lot of hiking and fishing the Smokies.
I can't say enough about the Korkers products, and if you are looking for a new pair of wading boots give them a look.