A little warm
Wore them on an overnight trip near Flagstaff. They were great when the temps were in the 50's. Very thick and comfy, but at lower elevations when the temps were in the 70's they were just too warm. My feet don't normally get too hot when I hike but I experienced a lot of sweating in these. In short, fantastic socks for when the weather is chilly, otherwise try something less thick.