This combination of a hot pink crew-neck t-shirt and jeans is hard proof that a safe off-duty ensemble doesn't have to be boring. Brown leather desert boots are an effective way to inject a dose of class into this look. So if you're looking for an ensemble that's seriously stylish but also entirely spring-friendly, this one is great. Gentlemen who are curious how to dress well as you age into your 40s, you have your answer.