Worn only once! FRITZ HANSEN for BIOTOP LOGO CAP In addition to a special order of the masterpiece stool designed by Arne Jacobsen in 1954, the first special order cap for FRITZ HANSEN apparel is now available. The black body features an embroidered green logo, the brand color of BIOTOP. This is a basic 6-panel cap with an adjustable size. Size: Free Color: Black Condition: Worn only once.