Keep your head and ears toasty warm with ScentLoks Carbon Alloy Knit Cuff Beanie. ScentLok Carbon Alloy technology combines activated carbon, treated carbon and zeolite that improves odor adsorption by up to 300% over standard carbon alone. Cuff can be rolled down to completely cover your ears when the wind starts howling. One size fits most. Imported. Colors: Charcoal, Green. Type: Headwear.