Here are some prototype photo’s of the next generation of Nike’s popular Covert Tour Driver. It appears they have made the bottom cavity even larger and have used a matt black finish in the cavity versus the last version which was high-enamel Cherry with a high polished chrome finish. It also looks like they are making it a bit more deep-faced.  I guess they are trying to make it look stealthier when its sitting upright in your bag with the headcover off but at address you can still see the bright candy apple finish from 2 holes away.