The Sock Dart Mid SP by NikeLab in collaboration with Italian brand Stone Island is transformed in this new release, featuring an 'Obsidian' colorway. The hyper-stretch mesh upper is in a striking Obsidian blue with a water-resistant, engineered silicon gloss. The mid-top style includes an Ariaprene collar, poly spandex lining, and adjustable midfoot strap. Nike and Stone Island co-branding can be found on the tongue. The upper is elevated by an Orewood Brown Duralon foam midsole and a black outsole with an upgraded sipe pattern, providing better traction and water dispersion. Alongside the 'Obsidian' colorway, this collaboration also introduced the 'Black' and 'Sequoia' options. The Stone Island x NikeLab Sock Dart Mid SP collection was launched in January 2017.