Released on August 2014 along with eleven other colorways, the Flyknit Lunar2 'Grey Volt' brings lightweight breathability and lasting support to the track and street. A Lunarlon midsole delivers springy, responsive cushioning while strong Flywire cables across the midfoot offer stability and customized lockdown. Underfoot, a pressure-mapped forefoot and reinforced rubber heel create the weight distribution and durability runners want.