Nike Flex Run 2021Women's Road Running ShoesFLEX YOUR MILES.Transformed from scraps, the Nike Flex Run 2021 is made with at least 20% recycled content by weight. Its lightweight, minimal design lets you transition from your short runs to all-day wear. The shoe has a flexibility that feels natural as you hit your groove. Underfoot cushioning, courtesy of a durable foam with a Solarsoft core, provides a plush feel with every step.Flexible FeelStretchy fabric and mesh above the toes conform to your foot. The stretch extends to the midfoot so it's flexible when your foot enters the shoe.Natural MovesGrooves on the sole allow for flexibility and natural motion. It's wider under the midfoot for better shaping through the arch and support in the forefoot and heel.Light and SoftDurable foam that feels lightweight and comfortable cushions your foot as it hits the ground. Extra-cushy foam is visible from the bottom of the shoe in between the grooves.Foam and mesh around your heel feel cushioned and comfortable.A pull tab provides easy on and off.