I know trail runners are really popular with thru-hikers. So I may look at a pair of trail runners that enough tread to provide traction on the hike-a-bike sections, but flat enough to grip my pedals securely. Right now I own a pair of Saucony Peregrine Trail Runners that I purchased a while back on a good sale. I haven’t tried them on my bike before, but I will to see how well they do with my flat pedals.