In response to customer requests for a wallet with even greater durability than our standard Stingray Billfold, Adam Unlimited is proud to be the first to offer a new line of Stingray wallets that feature a full interior made from genuine Shark skin. This beautiful and unique combination makes for a wallet that truly stands out from the crowd and will withstand the tests of time. This new billfold still contains all the great features you've come to expect, including 11 card slots, 2 currency compartments lined with high quality silk, and a flip up ID window.