I tried other brands/models, and these are the most comfortable. Highly recommend!
These are my first knee braces. I tried multiple pairs of other brands/models of knee braces (Leatt, Mobius) before finally finding these rS9s, and they are great. They don't have that "pinch point" on the inner knee that the others did (I rode in the others too, didn't just try them on for a few minutes). I was able to wear these all day (8+ hours), multiple days in a row. No issues, they didn't slip, and seem to offer lots of protection (I havent actually crashed with them yet). I like how they have both velcro and the easy adjust straps, so once they are set they are easy to put on the next time. The first time I adjusted the straps a little too tight, but it only took one little adjustment to find the sweet spot. Highly recommend, and it's cool they are affordable too.