Mammut Youth Climbing Cup & Schweizermeisterschaft Lead Lenzburg 2015 - YouTube
Mammut - We are super proud to have amazing young talent in our team! Sabina van Essen is 15 and won GOLD at the recent European Youth Cup in Belgium and also
Mammut Youth Climbing Cup Boulder Les Diablerets 2015 - YouTube
Bildstrecke - Klettern Mammut Youth Climbing Cup
Mammut Kids' Ophir Harness - Moosejaw
Mammut Youth Climbing Cup Genève 2013 - YouTube
Lead Cup and Open Youth Boulder competitions - April 2017
Mammut Youth Climbing Cup Villeneuve | Schweizer Alpen-Club SAC
Mammut Youth Climbing Cup Näfels 2018 - YouTube
Köhler nicht zu schlagen | Züriost - Immer da. Immer nah.
Jungfrau Zeitung - Leon Niederberger ist U14-Schweizermeister