the charmingly named Neck Gaitors? They have been my all-purpose solution to the Great Mask Dilemma of 2020. They're washable, lightweight, stylish, useful, versatile, you can wear them as a scarf and pull them up as needed, or as a hairband or even a bracelet if it's too constricting to keep it around your neck. They're cheap to order from Amazon by the half dozen--they have seriously helped me keep my sanity.