The updated 990v6 design eliminates the need for the traditional midfoot saddle (the part that crosses the top of the foot) and instead features pigskin suede and synthetic leather overlays that flow from heel to toe over a mesh upper.
While this evolutionary look and feel is one of the most dramatic changes from the previous generation's model to this generation's, the biggest functional leap actually occurred inside.
The added cushioning, resilience, and lightweight properties of the FuelCell midsole make the 990's evolution more palpable the more you look at it.

Material: Natural leather/synthetic fiber upper material - Rubber sole material
Item Number: M990BK6