Nike Mayfly Men's Running Shoe

Description:
   The Nike Mayfly is ideal for athletes who require lightweight running shoes for racing. Considered to be a disposable shoe, the Nike Mayfly was inspired by the ideal set forth by Nikes founder Bill Bowerman, who envisioned running shoes that would provide enough support for a runner during a race, but would fall apart once that runner had crossed the finish line. If you are aspiring to achieve a personal best at competition level, these Nike Mayfly running shoes are the running trainers for you.
    Constructed with a lightweight, one-piece upper called Tyvek? (rip-stop nylon) with an injection-moulded sole, the Nike Mayfly concept was has been based on the life cycle of the mayfly which by nature is an insect that lives, breeds and dies in one day. A warning card supplied with the shoe cautions the runner not to wear the running shoes for longer than 100km (62 miles) to emphasise the intended lifespan of the Nike Mayfly.