The Danna, Adjustable Velcro Back Facemask from BlackStrap sets the industry standard in performance, comfort, and protection from the elements. Skiers, snowboarders, snowmobile riders, and all outdoor enthusiasts will find The Danna their new favorite tool in the outdoors. The Danna has dual layer 4-way stretch fabric for seamless helmet compatibility and hydrophobic Velcro that is designed to stick even in the harshest conditions (No more frozen knots). The Danna is UPF 50+ (UV) rated for sun protection and wind rated. Stay Protected, Explore Longer.