NIKE Men's Zoom Stefan Janoski L Black/Crystal Mint/Night Factor Skate Shoe 13 Men US Leather-And-Synthetic Rubber sole Zoom technology is incredibly thin to bring your foot closer to the ground for stability and tightly stretched fibers pressurize upon impact to absorb shock Autoclave construction reduces bulk and reinforces the life of the shoe (and outperforms traditional glues) by fusing the upper to the sole