The Finer Details A scannable QR code on the tongue acts as your tour guide to the Interact Run's performance benefits. It offers tips on how to extend the life cycle of your shoe from upkeep options to repairs and long-term care. Finally, when you logged all the miles you can, the QR code will suggest ways in which you can recycle and donate the shoes once they’ve run their course. Soft, responsive foam in the midsole gives you a comfortable, smooth ride for your run and wherever else your day takes you. High foam heights provide a soft feel. Flyknit upper has zones of breathability where your foot heats up most, specifically at the toe box. It's strong and durable, helping keep your foot secure with every mile. The airy and breezy upper hugs your foot in a free and easy way. Overlays at the toe offer durability. Nike Mens Interact Run