I picked up a couple pair of Arc’Teryx Incendo’s early last summer, and I love them (despite the price tag). I live in Arkansas, and summer trail running is a special kind of misery. They have zero water resistance. I prefer things that shed water quickly instead of trying to stay dry. I trained in them all summer (over 1k miles), and they still look fresh. It’s the only pant I’ve found that is tolerable in the heat. I wish there were more products like it. Simply having any cover at all is the best first-step against bugs, too.

I have a set of the Rab Torque pants that I really like. They’ve worked well for me for running, hiking, and climbing. They’re not a waterproof pant at all, but I think they are DWR treated for some water resistance. They’re not something I’d choose for a full day out in the rain, but they don’t soak up the water and are comfortable enough when wet. I’ve been pretty surprised at how comfortable they are for running, so much so that I often choose them over shorts in warmer weather than I expected.