Nationalbanken (The National Bank) is considered one of the architect Arne Jacobsen’s main works. The facades are covered in the Porsgrunn marble that he often used – among other places also on the city hall in Aarhus. The marble surfaces, that are intersected by vertical windows on the ends of the building, change colour depending on the weather, changing from light grey to light blue to light green. The colours and structure of this iconic building has inspired the design of this vest.