The Nike Zoom Fly Flyknit, designed specifically for elite marathon runners in 2017, has been relaunched in January 2019 with enhanced features. The new 'Deep Royal' variant boasts a breathable upper, utilizing advanced fusible yarns to create supportive areas in key regions. This rendition also includes innovative elements like the carbon fiber plate borrowed from the VaporFly 4%, which provides enhanced stability and responsiveness, along with the incorporation of React technology and diverse traction. By combining the best of the past and present, this updated version caters to the needs and expectations of today's demanding athletes.