Keep yourself cool while keeping your face covering on hand to maintain COVID-19 appropriate face-covering in times when you can not maintain your social distancing.  Similar function to a mask, but lightweight and moisture-wicking fabric makes it easy to take with you on any run.  Versatile - doubles as a bandanna, neck warmer, headband, even a hat!  Confluence Running also carries Buff brand products.  Luck O'the Irish be with you!