Koen de Jong
Koen de Jong's most popular book is The Way of the Iceman: How the Wim Hof Method Creates Radiant Long-term Health—Using the Science and Secrets of Breath Control, Cold-Training and Commitment with 7 saves and an average rating of 3.5.
Koen de Jong's most popular book is The Way of the Iceman: How the Wim Hof Method Creates Radiant Long-term Health—Using the Science and Secrets of Breath Control, Cold-Training and Commitment with 7 saves and an average rating of 3.5.