Men's Nike Flyknit Lunar 3 Running Shoe CONTOURED COMFORT, MAXIMIZED. This training season, Men's Nike Flyknit Lunar 3 Running Shoe breaks the tape with a new Flyknit upper design that maximizes comfort while remaining ultra-light, incredibly strong and supportive throughout your stride. Nike Flyknit upper offers breathability, stretch and support. Integrated tongue stays in place for comfort while running. Plush collar hugs your heel for a comfortable fit. Lunarlon foam for ultra-plush, responsive cushioning. Contoured sockliner provides great underfoot support. Pressure-mapped outsole and flex grooves for natural motion.