The Nike LunarRacer+ 2 retains many of the key attributes that made the original LunarLite Racer one of the most popular racing flats in 2008. The outsole design and midsole tooling remain largely unchanged.  The upper of the LunarRacer+ 2 is based on the same last as the previous version and features Flywire technology.  The key changes to the upper is the addition of a slightly molded arch as well as moving the overlays from the inside of the upper to the outside of the Flywire upper to allow for a smoother fit.   The heel counter now has a T-shaped design, while the outsole offers BRS Rubber in the toe off area for added durability.