The Nike Running Genealogy Pack is headed to retailers Thursday, July 31st, 2014. It’s hard to believe that Nike Free technology has been going at it for an entire decade, but to celebrate the occasion, the Swoosh has brought back some of their most important running silhouettes (and a few forgotten models – the Nike Sock Racer, anyone?) to bring to light the lineage and inspiration leading up to the debut of the free outsole. The colorways are fairly toned down featuring an ominous black upper while most of the outsoles get a clean cement grey speckle to finish things off. While the Nike Free Run 2 SP grouped in with this collection hit retailers back in May, you can grab the likes of the Air Presto, Free OG, Free 5.0 and more come 7/31. As always, stick around after the click for more from this upcoming Nike collection and reserve your favorite running silhouette today from select retailers like Concepts.