Part of Artecnica's Billboard Project, these cork cases are produced from sustainable cork and 100% recycled billboards, and were inspired by the simplicity of the common envelope. The small version is suitable as a wallet, while the medium version is perfect for holding travel documents, business receipts, and other ephemera.

Artecnica, a design firm based in Los Angeles, is renowned for its commitment to sustainable manufacture, along with its pioneering efforts in promoting self-sustaining artisinal communities in underdeveloped countries. Their ongoing Design with Conscience project, which brings together some of today's leading designers with village artisans around the globe, has been both admired and emulated since its inception.

• Small: 3.25" long x 5.75" wide
  
• Medium: 5" long x 9" wide