A soft-outer core formulation and cover help to increase short-game spin and feel. Meanwhile, a hard-inner core and thin-mantle layer combine to reduce driver spin. The cover is a hexagonal design the reduces drag for a straighter and more stable flight.
The consensus in the GM office was that the Tour i was the softest premium ball we tested. This makes it excellent around the greens. The only downside was that the cover seemed to scuff up more than others - but we think this is a small price for the high level of feel.