Nike Reax Run 5Nike Reax Run 5 is a dynamic running sneaker that delivers superior cushioning and support. This ultra-lightweight sneaker features a mesh upper with synthetic overlays, LunarLite plate form at the midsole, partial bootie construction, and a rubber outsole with deep flex-grooves. Plus, the Nike Run Avant+ contains a Nike+ pocket under the sockliner that "talks" to your iPod so you can track your workouts (Nike+ iPod Sport Kit required).