Why not try teaming a red and black check long sleeve shirt with a grey crew-neck t-shirt? As well as totally practical, both items look cool when matched together. And if you need to effortlessly up the style ante of this getup with one single item, why not complete this getup with a pair of burgundy leather brogues? Those who are curious how to rock edgy off-duty outfits as you step into your 30s, you have your answer.