This is the Reebok Pump Running Dual in the White/Black/Yellow/Pink/Grey Colorway. Reebok introduced the "Pump" technology in 1989. It provides the ultimate in a custom fit and support system. The honeycomb is one of the strongest yet lightest shapes found in nature. With modification, it was the theory behind the development of Reebok's Hexalite technology. The Hexalite honeycomb design spreads shock over a larger area then EVA or polyurethane. As a result it combines cushioning and light weight for superb performance! Available in very limited quantities and only in very selected stores in Germany!