This pairing of an olive shirt jacket and jeans is on the casual side yet it's also on-trend and seriously stylish. Finishing with a pair of tan leather sandals is a guaranteed way to inject a laid-back feel into this ensemble. Clearly, it's easier to work through a baking hot warm weather afternoon in a light and breezy look such as this one. A fail-safe option outfit appropriate for young gentlemen who prefer casual dressing.