This spacesuit was worn by astronaut Neil Armstrong, Commander of the Apollo 11 mission, which landed the first man on the Moon on July 20, 1969.
The lunar spacesuits were designed to provide a life-sustaining environment for the astronaut during periods of extra vehicular activity or during unpressurized spacecraft operation. They permitted maximum mobility and were designed to be worn with relative comfort for up to 115 hours in conjunction with the liquid cooling garment. If necessary, they were also capable of being worn for 14 days in an unpressurized mode.
The spacesuit has the designation A-7L and was constructed in the Extra-vehicular or EV configuration.
NASA transferred the spacesuit to the National Air and Space Museum in 1971.
The conservation of the spacesuit, which Armstrong wore when he walked on the moon for the first time on July 20, 1969, was made possible by a Kickstarter campaign that raised more than $500,000 from 9,000 people.