Nike Zoom Fly Flyknit Dark Grey Men's - AR4561-002 - US
Nike Zoom Fly Flyknit Deep Royal Men's - AR4561-400 - US
Road Trail Run: Vaporfly 4% Flyknit Initial Impressions and Race Review. Near Perfect for 1:07 & 1:40 Half Racer/Testers. Comparisons to the Original Vaporfly 4% and Zoom Fly Flyknit