To look smooth and dapper, wear a navy cardigan with a grey vertical striped suit. Add a pair of dark brown leather double monks to the equation to immediately turn up the fashion factor of your look.
Navy Cardigan with Dark Brown Leather Double Monks Dressy Outfits
Go for a navy cardigan and a dark green suit if you're going for a clean-cut, sharp look. A pair of dark brown leather double monks rounds off this look very nicely.