On May 27, 2025, the American Tyler Andrews wanted to set a sporting exclamation mark: from Everest-BaseCamp to 5,364 meters to the summit at 8,848 meters-without additional oxygen, in less than 20 hours. However, the third attempt in this extra discipline failed at around 8,500 meters, just below the so -called death zone. Exhaustion, cold and lack of infrastructure made it impossible to progress.
The project was accompanied by a Netflix film team that documented the physical and mental emergency of the project. The publication is planned for autumn 2025.
The origin of this challenge is less well known: A serious ankle injury forced Andrew’s break years ago – of all places at Everest Basecamp. There he met the Swiss shoe brand Kybun. Their elastic air cushion sole contributed significantly to regeneration. “Without the support of Kybun, I would never have found back to this form. The record attempt would not have been conceivable without it,” said Andrews.
The three attempts that Tyler made were under difficult signs. At the first, the shoe broke the climb in the second prevented extreme winds. The third attempt ended shortly before the finish.
“Of course we are disappointed-we had firmly believed that the record attempt will work this time,” says Karl Müller, co-CEO of Kybun Joya. “But much greater than the disappointment is admiration: for this incredible will, for the ability to let go when it is necessary – and for the courage to get up again.” Tyler had set a sign – even without a summit photo, says Müller.
