check this out, as it's smartwool like the CliftonGK1 noted, and can be configured as you wish. It got incredible reviews. Can't say enough about the smartwool. No itching or smelling, and warm. I wear it around my neck, pull it up to my ears and over my nose, or as a beanie with a "vent hole"

http://www.amazon.com/Neck-Gaiter-Bl...5828627&sr=8-1