Nike InfinityRN 4 Review: Most Surprising Shoe of 2023 。With supportive cushioning built for a smooth run, the Nike InfinityRN 4 \"White/Bright Crimson/Total Orange/Black\" Men\'s Running Shoe helps you hit the ground running. Made with soft, comfortable Nike ReactX foam and updated with Nike Running\'s best-fitting Flyknit yet, this road runner helps you take off anytime, anywhere. It’s the kind of shoe that can help give you the confidence to set a new pace, thanks to high foam stacks and an intuitive design that helps support every stride. Like new - only worn a couple times and no blemishes