This NikeLab collaboration with Italian brand Stone Island reinvents the Sock Dart Mid SP in an 'Obsidian' colorway. Featuring an Obsidian blue hyper-stretch mesh upper with a water-resistant, engineered silicon gloss, the new mid-top cut comes with an Ariaprene collar, a poly spandex lining, and an adjustable midfoot strap. Nike and Stone Island co-branding accent the tongue. The upper sits atop an Orewood Brown Duralon foam midsole and a black outsole with an upgraded sipe pattern for improved traction and water dispersion. Released in January 2017, this Stone Island x NikeLab Sock Dart Mid SP dropped alongside ‘Black’ and ‘Sequoia’ colorways.