AleSmith Brewing Co.’s popular Speedway Stout is getting a new variant aged in two different barrels, but you will have to be a member of the brewery’s club to get it.

Double Barrel-Aged Lotza Vanilla Speedway Stout is a 13 percent ABV imperial stout brewed with coffee and aged in both bourbon and vanilla extract barrels with Madagascar vanilla beans. As the name suggests, the base beer is the San Diego-based brewery’s year-round Speedway Stout, a beer that debuted in 1999 and has had more than 60 different variants released since.

According to a label filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), Double Barrel-Aged Lotza Vanilla Speedway Stout will be packaged in 750ml bottles and will be an exclusive release for members of AleSmith’s Order of the Anvil club, which is the brewery’s membership club that debuted last year.

An email sent to the brewery for additional information was not immediately returned.