The Black Dog has been in downtown Mystic since 2007. It is part of a chain of locations up and down the Eastern Seaboard which specializes in clothing. The store sells Black Dog brand shirts, sweatshirts, jackets, pants and shorts, available in preppy, nautical styles. Other Black Dog items for sale include watches, umbrellas, jam, granola and dog bowls. The Black Dog is on the right side of the street when approaching the drawbridge from the Groton side.