I wore one pair of these socks every day for 9 days straight of hiking in the rain in Wyoming. I do not wear liners with these. They are very comfortable on the skin. I had a second pair with me to sleep in at night. It was in the 50's during the day and down in the 30's at night. My feet stayed nice and cool during the day and warm enough at night. Best of all, they don't stink!