Edward White was the United State's first astronaut to exit the spacecraft and float in space. White enjoyed his spacewalk so much he had to be told several times to return to his spacecraft. He spent nearly twice as long as scheduled on his spacewalk - about 20 minutes total.
The G-4-C suit consisted of five major parts:
the main torso
helmet
boots
gloves
neck seal
Underneath the suit, White wore a constant wear garment. The suit permitted freedom of movement, and was equipped with communication technology and systems to monitor his heart rate and vital signs.
Edward White's EVA suit worn during the Gemini mission is currently not on display at the National Air and Space Museum. It is either on loan or in storage.
Unfortunately Edward White was not the first man in the world to do a spacewalk. In 1965 Russian Cosmonaut Aleksei Leonov was the first man to ever float in space. This was during the USSR vs. US Space Race in the Cold War period. White was the first American in to walk in space.
Unlike the pressure suits an EVA or Extravehicular Activities suit had to keep a human alive when outside of the spacecraft. Not only did it need to hold pressure but it also needed to protect from the temperatures of space, radiation, and protect the astronaut from micrometeorites!