This is a patch for the U.S. Navy's Carrier Airborne Early Warning Squadron 121 (VAW-121), also known as the "Bluetails". The patch features a play on the Patagonia logo, with the squadron's E-2 Hawkeye aircraft flying over the mountains and the word "propagonia". The VAW-121 squadron is based at Naval Station Norfolk and operates the E-2D Advanced Hawkeye aircraft.