These are a pair of leather, fleece lined winter trousers used by the Air Force of the United States Navy. There are zippers on both sides, and adjustable suspenders as well. Each leg has a deep front pocket. There are letters on each of the legs, VN-11B USN, 105 USN. The label reads:
Bu AERO US NAVY
WILLIS and GEIGER
Contract Nos 87660
Due to age & wear, the zippers will need to be repaired or replaced.