Ecco's BIOM shoes allow the body to move the way it naturally wants to, without cushioning or excessive stability. As a result, this minimalist shoe will allow your feet and leg muscles to strengthen up long term, thus improving performance. ECCO developed this technology with the help of renowned biomechanist Peter Bruggeman of the University of Cologne. The BIOM was created on the premise that when the foot is lower to the ground, a runner will resort to a more natural running gait by using more of the midfoot area of your foot. The BIOM is composed of polyurethance in the midsole, and has a significantly beveled heel to allow further use of the midfoot.