For the Duo models we use the cowhide "Omega". It is 100% vegetable tanned and therefore completely chrome-free. It gets its silky glossy expression through the processing of the "Glanzgestoßens". The leather surface is compressed by strong friction and pressure so that it becomes smooth and shiny. It is a very light cowhide with a rich feel.

The Duos are simple and expressive bags due to their clear design. Their design is strongly oriented to their function. The glossy leather emphasizes the clear design.