I had no issues doing the north section with a group, wearing my trail runners going nobo. Wear what you normally wear and you should be fine. I've worn my Montrail xc in the Sierra also. An upcoming trip for our group in April, I'll have to decide if I want to go again. Last time, the nobo and the sobo group met the second day out camping together, exchanged car keys and met in town the morning we came out for lunch and get owners keys back.