The handcrafted Case Sergio is designed for an oyster knife and made in Hamburg.

The front is made from robust and water-resistant salmon leather. The back is crafted from vegetable-tanned leather sourced from a historic tannery in Kellinghusen (Germany).

The fin-shaped silhouette highlights its oceanic inspiration while serving a functional role. Removing the knife from the case mimics the same lever motion of opening an oyster, creating an intuitive and efficient user experience.