Men's Nike ReactX Rejuven8 The Nike ReactX Rejuven8 is a men’s recovery-focused casual shoe designed to provide plush comfort and everyday wearability. Built with Nike’s soft and responsive ReactX foam throughout the upper and midsole, it delivers a cushioned feel ideal for rest days, casual outings, or post-workout recovery. The slip-on design features ventilation holes for breathability and a sticky rubber outsole for reliable traction on a variety of surfaces, while the relaxed fit accommodates a range of foot widths.