Buffs from the buff brand have a cool max feature. They can get a little steamy from your breath though, which can also fog your glasses. An anti fog helps though. I do find myself pulling it down past my mouth at times, but ears are always covered. I also prefer the buuf over the top of my head and the hat over that, which seems wrong, but KS more comfortable for me. Also wear as a head covering under my helmet when mountain biking, absolutely solved the problem of sweat in the eyes and glasses, and is comfortable as well. Just remember to wash them every now and again
