Nothing slows a runner down like injury. The Nike React Infinity Run is designed specifically to reduce that risk. It blends the best qualities of the company's Vaporfly and React technologies, resulting in a shoe that's both stable and bouncy. A rocker-like bottom encourages a more fluid transition through each stride and a slight forward lean, while a widened midsole provides a confident base and gently guides the foot in a straight line. Ideal for middle-milage, moderate runs — think training, not racing — the shoe produced a 52% lower injury rate compared to the motion control Nike Structure 22 during testing. Available to Nike members January 3 and everywhere January 16.