The worst part of my day of fishing is taking my boots off, Simms has just made that a whole lot more enjoyable. The Simms Rivertek Boa is the easiest boot I had ever put on or taken off. The neoprene lining inside the boot slides right onto your foot. The Boa lace system is quickest and most efficient system I have ever used. I must say that I was skeptical at first, but now I am a true believer. No more laces to tie or wear out.
The Streamtread Vibram is the best river sole out there. I can tell you that with confidence from using and testing other brands rubber soles. You will slip less and grip more with the Simms Vibram. I personally do stud mine, but even without the studs they are extremely grippy. The Riverteks are much more supportive ave than I had thought. The synthetic materials is extremely stiff, durable and light. My ankle was perfectly at home inside of these. I would recommend these to anyone looking for a new pair of boots, they certainly have my stamp of approval.
-James


how do they compare to Korkers?
I just retired my Korkers. I can say from using both that the Simms sole is way stickier! But the Korkers have the removable sole option (I personally dont have a need for that). The Boa system is the same on both boots. So I say if you want traction, buy the Simms. If you want removable soles then Korkers is the way.
I have narrow, flat feet. Most boots are too wide and have too much volume for my feet. Are these boots made for wide feet? I would like to try to find a better fit.
Narrow boots are hard to find these days. All Korkers and Simms boots are moderately wide. I would say the Riverteks are not as wide as my Riversheds, but they are by no means narrow. Best thing to do is come try them on and see for yourself!