How I Built This with Guy Raz

HOKA: Jean-Luc Diard and Nicolas Mermoud. The “Clown Shoe” That Became a $2B Bonanza

Feb 2, 2026
Nicolas Mermoud, a mountain athlete and product designer who raced ultramarathons, and Jean-Luc Diard, a seasoned product leader from Salomon, built a radical cushioned, rocker-shaped running shoe. They discuss the risky “clown shoe” prototypes, proving performance through demos and races, manufacturing and cash-flow headaches, and the strategic partnership that unlocked U.S. growth.
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ANECDOTE

Race Breakdown Sparked The Idea

  • Nicolas Mermoud collapsed at the 2007 Ultra-Trail du Mont Blanc because his quads shut down from downhill pounding.
  • That painful failure became the catalyst for designing shoes that protect legs on descents.
INSIGHT

Shoe As A Machine

  • Jean-Luc Diard and Nicolas Mermoud treated a shoe like a machine: midsole as engine, outsole as tires, upper as seat.
  • This systems view led them to prioritize midsole innovation over fashion.
INSIGHT

Soft Foam Without Heaviness

  • To get soft cushioning without weight penalty they used much softer, lower-density foam and wider shapes.
  • Surrounding the foot inside a wide midsole increased stability despite the extra foam.
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