Gary Cooper is consistently wearing clothes I wish I could pull off. In the previous image, it was the white shirt, in this, its the white turtleneck. It's obviously thin, in colder climes one could begin to wear it now, especially in the evening. Look at the shine and vibrancy it adds to his face, the way he stands above it, and the eyes are set aglow by the white turtleneck, but you are still drawn to the face more than the sweater.

Though one could debate that.