After verifying the JSList items in his mobility bag, Technical Sgt. John Surbaugh begins to pack the bag for travel during an Operational Readiness Exercise held in the Supply building of the 132d Fighter Wing in Des Moines, Iowa, on April 10, 2010. This particular mobility bag is also called the C1 bag; it contains items such as the gas mask second skins (Surbaugh is holding these), and other various Chemical Protective Equipment items. (US Air Force photo/Staff Sgt. Linda E. Kephart)(Released)