For a smart casual ensemble, marry a coat with white wide leg pants — these two items work really great together. If in doubt about the footwear, rock a pair of white pumps.
White Pumps with Coat Dressy Outfits In Their 20s
This combination of a coat and a white lace sheath dress couldn't possibly come across as anything other than outrageously stylish and refined. A pair of white pumps looks wonderful complementing your ensemble.