In unicycling (especially muni and urban) pads can be a very useful piece of safety equipment, saving you from scrapes and pedal bites. There are surprisingly few options out there that I actually consider for unicycling. Below is a quick rundown of the options.
Fuse Protection seems to be the most popular brand of pads lately. The Echo or Delta combination shin/knee are recommended (I still need to do more research on he difference between echo and delta)
The Kris Holm pads are the only ones made specifically for unicycling. Unfortunately, they are not the best pads for unicycling. I have managed to go through multiple pairs in just a few months, and the price keeps getting steeper over time.
More info to be added in the future!