If the situation allows laid-back dressing, you can easily rely on a turtleneck and beige jeans. A pair of black leather chelsea boots effortlessly spruces up the look. As you're going through your late 20s, you want to start dressing more professionally. In this case, looks like this are a winning option.
Why not consider pairing a turtleneck with beige jeans? Both items are very practical and look awesome when worn together. Spice up your outfit with a dressier kind of footwear, like this pair of burgundy leather loafers. Outfits like this go a long way towards building your style as a younger gent.