See the incredible 57-year evolution of US spacesuits - and new models that will soon protect NASA astronauts

Jenny Cheng/Business Insider




Space may be the final frontier, but it's also inaccessible - and $4 - to human beings without a good $4.

For 57 years, $4 and US companies have met the call to protect high-flying astronauts who risk their lives in the name of exploration.

From the silvery suits of the 1950s and 1960s Mercury program to next-generation $4 and $4 designs, here's how astronauts' spacesuits have evolved over six decades.

$4 and $4 contributed to this post.