165 cm
Alain Robert (French pronunciation: [alɛ̃ ʁɔbɛʁ]; born as Robert Alain Philippe on 7 August 1962) is a French rock climber and urban climber. Nicknamed "the French Spider-Man" or "the Human Spider", Robert carries out free solo climbs of skyscrapers using no climbing equipment except for a small bag of chalk and a pair of climbing shoes.
Source : Wikipedia