Baby, It's cold outside! My mother always said, if you're cold, put on a hat... but if it is not so cold or you are one of those lucky people with an internal furnace, then an Ear Band is more comfortable.
My hand-knit Ear Bands are made with Peruvian fine merino (=SOFT). Not itchy like the ones I had when I was a kid. They are good for an adult head size 21-24" in circumference. Notice that they vary a bit in width... running 3-4" wide.