Do more training than running? You can still enjoy all the natural movement benefits of the Nike Free system with the Nike Free Trainer 3.0 ($TBA). Built on the Free outsole, the Trainer 3.0 features a mesh upper with polyurethane support, a Dynamic Fit system to cradle the midfoot and provide a lock-down fit, and a Phylon midsole for added cushioning. All these materials also happen to be lightweight, allowing a size 9 to weigh in a just 9 ounces. Arriving in January.