The Matt Gala starts when the calendar flips to April in D.C. Sean Cooksey points out that colder-weather vests have served their purpose, so it’s time to switch over to a different look. Instead of the layered wool vest you’ve been living in all winter, break out the crisp button-down shirt he’s talking about. Cooksey doesn’t specify a brand or cut—he’s after the classic sharp white shirt that works from brunch on the patio to evening drinks on the Hill. The whole idea is practical: lighter layers hold up better when spring heats up, and a simple shirt keeps you looking put-together without overheating.