Look back at how climbing gear on Everest has evolved in the decades since its first ascent in 1953. https://on.natgeo.com/2XEU7eE

Look back at how climbing gear on Everest has evolved in the decades since its first ascent in 1953. https://on.natgeo.com/2XEU7eE 

https://twitter.com/NatGeoTravel/status/1103505570718453760