The Diplomat Aero fountain pen in Champagne features a champagne gold anodized aluminum cap and barrel, with a matte black-plated section and clip. The nib is available in both stainless steel and 14kt gold options. The Diplomat Aero was created to capture the feel of the Zeppelin airships of the early twentieth century. The rigid exterior of those Zeppelins is brought to mind with the shape and exterior grooves on the pen.