Nike Free Run Commuter CMTR Running Shoe Black/Black 831511-001 Men (8.5 US) fabric-and-synthetic Flywire cables for lightweight support and an adaptive fit Solid rubber segments under toe and heel enhance durability Reflective elements enhance visibility in low light The midsole expands multi-directionally to deliver more dynamic flexibility with every step. Durable mesh stretches across your midfoot and heel for support with breathability.