Brand New Nike Air VaporMax Flyknit 3 'Particle Grey' Men's Running Shoe AJ6900-012 New in Box 100% Authentic Benefits. Flyknit construction seamlessly integrates breathability, stretch and support. Textured 2-tone upper takes inspiration from the flowing, linear lines of couture fashion. Flywire cables work with the laces to provide more support as you tighten them. Strategic engineering creates contoured cushioning that sits directly underfoot and flexes with your stride.