Having suffered through the McNamara Jungle Boots (which weren't so bad until they got soaked. Not many marshes or bogs in Vietnam, you know.), these fine boots for pilots sound like a great benefit.
Do read the final paragraph, though, for the whole story.
http://fly.historicwings.com/2015/07/usafes-famed-flight-boots/
Something SPI never factored into The Next War.