You'll be amazed at how easy it is for any man to throw together this smart outfit. Just a black crew-neck t-shirt paired with black and white dress pants. And if you need to effortlessly elevate your getup with one single piece, add a pair of oxford shoes to the equation. As you step into your 30s, you want to start dressing maturely. If that's the case, getups like this are a real lifesaver.