I'm sure there are a ton of other threads on this topic, I haven't been able to find what I'm really looking for. Which is: What is the best combo, or layer for your lower half while thru-hiking?

I've seen many people mention running shorts, but what do you do when it get cooler out, or cold for your lower legs?

And chaffing, I've seen people mention compression shorts, kilts, nothing at all.....

I guess I'm looking for what people wore and how did it work out? Would you change anything different from what you did? I'm currently leaning towards a kilt, but I'm not 100% sure.