This combo of a black pea coat and navy jeans is really impactful, but it's very easy to put together too. And if you need to instantly ramp up your outfit with footwear, add a pair of brown suede chelsea boots to the mix. Keep this getup ready to go when spring arrives, and we promise you'll save a lot of time getting dressed on more than one morning. Certainly a nice pick when it comes to fashion tips for 30-year-old guys.