For an off-duty look, dress in a multi colored long sleeve shirt and a long sleeve t-shirt — these items play really well together. Finishing with a pair of white canvas high top sneakers is an effective way to infuse a dose of stylish effortlessness into this ensemble. It's a smart pick if you're figuring out a well-coordinated getup for transeasonal weather. This combo looks great on 20-year-old gentlemen.