During the 1950s, U.S. Air Force bomber crews stationed in the Arctic relied on specialized parkas designed to withstand temperatures as low as -60°F. The N-3B

During the 1950s, U.S. Air Force bomber crews stationed in the Arctic relied on specialized parkas designed to withstand temperatures as low as -60°F. The N-3B parka was developed by the U.S. Air Force in the early 1950s to protect bomber crews and other personnel working in some of the planet’s mo…