Airman 1st Class Brody Schneider, 28th Operations Support Squadron air traffic control technician, adjusts the strap on his bicycle safety helmet before taking on a mountain bike trail at Storm Mountain, S.D., June 24, 2012. Safety equipment, such as helmets, is important to prevent injuries while participating in outdoor recreational activities. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)