This combo of a light blue chambray dress shirt and olive dress pants is a solid bet when you need to look like a proper gentleman. Finishing off with a pair of brown leather desert boots is the most effective way to infuse a laid-back vibe into your outfit. When it comes to dressing for in-between weather, nothing beats a knockout ensemble that transitions easily between seasons. Wondering what clothing is appropriate as you reach your 30s? This getup is a wonderful example.