During the 90's visible running technology boom, PUMA innovated to create PUMA CELL Technology, one of the most durable and resilient cushioning technologies of its time. 20 years later, PUMA is bringing CELL back. The CELL Viper emerges from the ‘90s with a re-imagined design. Its sleek new upper sits atop a laid-back, chunky midsole with throwback CELL cushioning technology.