The Reebok Zig is an "energy drink for your feet".  ZigTech, a one-of-a-kind zig-zag shaped sole absorbs the impact of heel strike and propels you forward, while reducing wear and tear up to 20% in key leg muscles and your heels.  The DMX Shear cushioning also helps reduce fatigue, so you can run the court easier, longer and farther.  The Reebok Zig Energy Ref features an engineered lightweight foam as the outsole, allowing it to absorb the impact of heel strikes, while spreading it along the zigs and zags.  The lightweight full grain and patent leather upper provides ultimate durability.