This red boot 'Testosterone Machine 2.3 inches' is the Sasha golden heel award winning design for 2009.
Roos Koster: 'Because I design for men it was logical that it would become a shoe for men. This is my first shoe design, and it was difficult to think in 3-D. What I did find convenient was that modern-day shoe machines can make anything; that really amazed me.'
