(Right) Senior Airman Samantha Schmedeke, 33rd Maintenance Squadron fuel systems journeyman, and (Left) Airman 1st Class William Manion, 33rd MXS fuel systems apprentice, put on booties before walking atop an F-35A Lightning II to perform maintenance at Eglin Air Force Base, Fla., May 16, 2016. Fuel systems specialists wear these protective coverings to avoid scuffing the low observable paint, which is part of the stealth effect on the jet. (U.S. Air Force photo/Senior Airman Andrea Posey)