Ecco Performance - Virpir II Lo GORE-TEX (Black/Steel) - Women's: Nubuck leather and textile upper. Exo-Skeletal Wrap-Around Shank support. GORE-TEX(R) waterproof membrane. PU midsole. Omni-directional self-cleaning lugged propriatary RubberTech TM outsole. Anatomically correct angle of attack heel-strike zone. Dual axis forefoot flex channels. Removable inlay sole.