We're only a couple of days into 2017 and the UltraBOOST train is showing no signs of slowing down. Next up for the Three Stripes' fan favorite is a subtle grey colorway which features the hue across a Primeknit upper and a translucent lace-cage. The beloved runner is currently on sale at brick-and-mortar stores like Bows and Arrows Berkeley for $180 USD, while information about an online release is still pending. Stay tuned.