The go-to for a killer off-duty ensemble for men? A white crew-neck t-shirt with white chinos. Send an otherwise mostly dressed-up outfit down a less formal path by finishing with sandals. You can rest assured this combination is ideal for fluctuating fall weather.
If the dress code calls for a classy yet neat outfit, you can wear a white crew-neck t-shirt and a tan trenchcoat. When this outfit looks too dressy, dress it down with sandals. Rest assured, this look will keep you snug as well as looking dapper in this unpredictable fall weather.