Cool days or blazing sun, the Castelli Women’s Light Head Thingy doubles up to provide light protection or just a little extra warmth when you need it. Made from a summer weight, moisture-wicking jersey material the Light Head Thingy helps keep you dry. The seamless construction reduces material around your neck or under your helmet straps if you’re wearing it as a bandana.Key Features100% polyester jersey materialSeamless continuous tube constructionSublimated graphicsSummer weightUnisize