If the setting allows casual urban dressing, dress in a yellow raincoat and jeans. All in all, perfect for a young guy.
Yellow Raincoat with Jeans Casual Warm Weather Outfits For Men In Their 20s
A yellow raincoat and jeans are a great look to keep in your off-duty rotation. A pair of white leather low top sneakers will pull this whole ensemble together. Ideal to portray that even as a young guy you're confident enough to own your fashion choices.