Boss is a stable distance driver, which is used for the very longest throws out on the course. Disc's stability means you can rely on it when you cast, even when it's windy. Innova's Boss is particularly known for having been used to break several world records in the long throw, so that says something about the potential for this disc in the right hands.
Boss comes out here in the Innovas Tour series for David Wiggins, who holds the world record in the long throw with a whopping 1108 feet (337 meters). For that throw he used a Boss and therefore it is naturally the disc used for his tour series. It comes in a glow version of Innova's Halo Star plastic.