Colour
Ponti’s idea was simple. He had four suits made: two for winter, two for summer; two of which were formal (for society events) and two casual (for the drawing board and the building site). And though fabrics would alter from season to season, the suits were virtually identical in cut (the workwear jackets had two extra pockets to hold Ponti’s many pens). He was also specific about colour: pale blues, sand and cement grey for summer; black, charcoal grey and blue for winter.
The suit soon became Ponti’s uniform, and he rarely wore anything else.