NIKE Men's Air Max Run Lite 4 Running Shoe Grey/Blue/Pimento synthetic-and-mesh UPPER: Mono-mesh combined with weblite TPU film overlays throughout the midfoot and forefoot to provide lightweight support, breathability. MIDSOLE: Full-length Phylon midsole provides soft, lightweight cushioning, combined with new ramp Air-Sole unit for enhanced structural support and durability. OUTSOLE: Environmentally preferred rubber modified Waffle outsole provides durable traction. Deep flex grooves improve flexibility.