An alternative to a balaclava that I greatly prefer is a merino beanie and neck tube. You can pull the neck tube up the back of your head and across your face so that it covers either just the chin or all the way up to your nose, or you can pull it down on warmer days to just cover your neck. Or on really warm days, just wear the beanie. Much more adjustable than a balaclava, especially the loose-fitting ones that tend to be sold.