This spacesuit was sized for astronaut Donald "Deke" Slayton. The neck ring is unattached, and thus was unable to be pressurized.
The spacesuit was developed by the B.F. Goodrich Company from the U.S. Navy MK-IV full pressure suit, and was selected by NASA in 1959 for use in Project Mercury.
Transferred from NASA in 1982.
Transferred by NASA - Johnson Space Center