Bottled at 90 proof, and made with unique Sinatra Barrels & hard liquor; Jack Daniel’s Sinatra Select pays tribute to Jack’s biggest fan: Mr. Frank Sinatra. These Sinatra barrels have deep grooves on the inside of the staves — which exposes the whiskey to extra layers of oak. This imparts a rich amber color, bold character and a pleasant smokiness, followed by an incredibly smooth vanilla finish. Much like Frank himself, this whiskey is one of a kind.