The Women's ReactX Infinity Run 4 Sneaker by Nike blends innovative design with sustainability to elevate your running experience. Crafted with a revamped Flyknit upper for superior support and breathability, this shoe features all-new Nike ReactX foam, boasting 13% more energy return than previous models. Material - Knit. Perfect for hiking, it also reduces its carbon footprint by at least 43%, showcasing Nike's commitment to sustainability. This sneaker boasts an almond toe and a chunky heel, ensuring style and stability with every stride.