This semi-casual combo of a grey polo neck sweater and brown chinos is super easy to put together in seconds time, helping you look stylish and prepared for anything without spending a ton of time combing through your wardrobe. Unimpressed with this getup? Introduce a pair of dark brown leather oxford shoes to mix things up a bit. This look is a really smart idea, especially for fall, when the temps are dipping. As you move into your 30s, you want to start dressing like a grown man. That's when outfits like this are a tested option.