Black Flys multi-functional shields helps keep out airborne particles. While riding, or grabbing groceries down the street. Also helps reduce direct exposure from sunlight and protect against outdoor elements. They can be worn as a neckerchief, mask, scarf, head band, plus much more! Made to withstand the elements, the fabric is lightweight, breathable and seamless with moisture wicking properties that is soft to the touch. Perfect for riding, fishing, boating, hunting, gardening and any other outdoor activities.