Korin’s new Black Kessho Cooler Sake Bottle brings elegant simplicity to the table. Its dark colors and speckled overlay give it a sense of seriousness and purpose. The two-bottle design is both pragmatic and charming, keeping your sake at an ideal temperature for longer than a traditional single-walled bottle. This interior bottle is intended for use with Black Kessho Cooler Sake Bottle (Interior Bottle Only).