Nike Free Run 3.0 running shoes are available for purchase online through the Nike website and several other online retailers such as Foot Locker. The Nike website has a wider selection of this specific shoe than other retail websites do.
There are a few different styles of Nike Free Run 3.0 running shoes, including the Flyknit, Trainer V3, Trainer AMP and Trainer. These running shoes are available for both men and women and they come in several different sizes and colors. As of March 2015, the Nike Free 3.0 Flyknit running shoes for men cost right around $140 and the Nike Free Trainer 3.0 for men cost around $110.