Neil Armstrong's spacesuit weighed 80 kilograms 
The NASA Apollo 11 spacesuit worn by astronaut Neil Armstrong when he became the first man on the moon in 1969, weighed about 80 kilograms on Earth. The suit however weighed only 13.6 kilograms in the reduced gravity of the lunar surface. Additionally, the Shuttle suit, including the life support system, weighed about 140 kilograms on Earth.