U.S. Air Force Capt. Jeremy Krohngold, 36th Fighter Squadron F-16 Fighting Falcon pilot, jumps into a swimming pool during a water survival refresher course at U.S. Army Garrison Camp Humphreys, Republic of Korea, Dec. 17, 2020. The parachute canopy fabric is permeable which allows the trainee to breath if it is pulled away from the face. (U.S. Air Force photo by Senior Airman Branden Rae)