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 21 saves and an average rating of 3.2.
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 21 saves and an average rating of 3.2.