Very hard to find in 2024, these were part of my “backup” shoes that I’m finally letting go. Never worn, in pristine condition. Released in 2016 this truly was a ground breaking shoe. Constructed with an ultra comfortable one piece Flyknit upper, the Nike Free Flyknit 4.0 is lightweight, flexible and supportive. It boasts knit-in Flywire cables that wrap around the mid foot, knit-in heel support, slim midsole, asymmetrical lacing and hexagonal flex grooves on the outside. It was designed to unleash your natural stride. A fantastic shoe for running, CrossFit or just living your best life.