This combination of an overcoat and a long sleeve shirt strikes an interesting balance between dressy and casual. If you're not sure how to dress your age but also look fashionable, this getup is a real life saver.
Long Sleeve Shirt with Overcoat Cold Weather Outfits After 40
For a casually sleek ensemble, rock an overcoat with a long sleeve shirt — these two items work beautifully together. This ensemble is probably exactly what you're looking for as a 40-year-old.