Nike Air Zoom Structure 18 Flash Id Running Shoe NOW WITH REFLECTIVE WEATHER PROTECTION The Nike Air Zoom Structure 18 Flash Id Delivers an Even More Stable Ride Than Its Predecessor With Triple-Density Cushioning, and Now It Features Reflective Elements to Help You Stay Visible on Low-Light Runs. Customize Your Shoe With Cool Graphics, Vibrant Colors and a Personal Motivational Message to Stand Out Like Never Before. Be Seen Highly Reflective Glass-Beaded Accents-from the Swoosh to the Midsole-deliver Exceptional Visibility in Low Light, So You Shine Brightest When and Where You Need to. Weather-Resistant Fabrics and Material Treatments Help Keep Your Feet Warm and Dry, Too. Style It Up Add a Heel-to-Toe Color Fade, Bold Graphics and Midsole Speckles to Make Your Reflective Shoe Even More of a Standout. Customized Comfort Select the Width That Feels Best-regular or Wide-and Choose Either a Cushioned or Responsive Sockliner for Customized Comfort While You Run. More Benefits Nike Zoom Air and Dynamic Support Deliver Responsive Cushioning and Enhanced Stability Engineered Mesh Upper Repels Water While Providing Superior Support and Ventilation Reflective Elements for Enhanced Visibility in Low Light Flywire Cables Enhance Medial Lockdown Bottom-Loaded Nike Zoom Unit for Responsive, Low-Profile Cushioning Firmer Heel-to-Midfoot Foam Helps Slow the Rate of Pronation Waffle Outsole for Durability and Multi-Surface Traction Size: 8. Color: Grey. Gender: Male. Age Group: Adult.