This A1-C spacesuit was worn by astronaut Tom Stafford during early training sessions for the Apollo missions. The A1-C spacesuit was a modification of the Gemini G3-C and G4-C spacesuits and was only used during training until the final Apollo suit design was chosen.
It consisted of five major assemblies, the main suit, helmet, boots, gloves and neck seal. The astronaut was equipped with a life vest assembly, and wore a cotton constant wear garment underneath the suit. The suit weighed approximately 25 lbs, was relatively comfortable and permitted freedom of movement while pressurized.
The A1-C suit was made by the David Clark Company, and was transferred to the National Air and Space Museum from NASA in 1973.