Gerhard Zwettler

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At the Trekking-October 2009, in the Mount Everest region - Lhotse, Cho Oyu und 5 ascents of mountains between 5000m and 6000m - I had no problems with my feet. The footbeds affect till my head, cause I had no problems with height or stamina. BootDoc footbeds are very good – at least we walked 200km with an altitude difference of 20.000m.