American Bison Leather Dopp KitBuilt for travel, ritual, and keeping your grooming essentials in order. American Bison leather, a USA made brass zipper, and Montana craftsmanship come together to create a timeless catch all that only gets better with age. American Bison Leather: Soft yet supple with natural texture that patinas beautifully and stands up to years of flights and hotel bathrooms. USA Made Lenzip Zipper: Solid brass zipper with smooth pull action and best in class