Ecco Men's Biom Hybrid All Leather Golf Shoes 131504/51215 Leather The first ever performance hybrid golf shoe combines an array of patented, ECCO technologies, including narural motion and the Ecco dynamic traction system outsole. Remarkably stable, comfortable and supportive, it`s preferred by dozens of leading Tour players. The E-DTS consists of approximately 100 molded traction bars. Constructed from TPU a highly durable, wear resistant material, these elements boast 800 plus traction angles to provide excellent grip in all conditions Outer material - Leather