A navy turtleneck and white dress pants are definitely worth adding to your list of essential menswear styles. Black leather chelsea boots are the glue that ties your getup together. If you're not sure how to dress as a younger gent, this getup is a wonderful example.
Putting together a navy turtleneck with white dress pants is a smart option for a classic and refined outfit. All you need is a cool pair of dark brown leather loafers to finish off this outfit. As you're moving through your late 20s, you want to start dressing with more refinement. If that's the case, outfits like this are perfect as inspiration.