WhistlePig Piggyback Rye is a limited edition rye whiskey that is released in small batches. This specific bottle is the Gold Limited Edition Proof 110, which means it is bottled at 110 proof (55% ABV) and aged for 10 years. The bottle size is 1 liter. This rye whiskey is known for its rich and complex flavor profile, with notes of spice, caramel, and oak. It is a highly sought-after spirit among whiskey enthusiasts.