For a look that delivers function and fashion, try teaming a navy long sleeve shirt with skinny jeans. For something more on the classy end to complete this getup, opt for a pair of black leather chelsea boots. Dressing smartly is the key to surviving subzero temperatures, but this outfit is a clear example that you can accomplish this with style. This pairing suggests how to kill in the semi-casual fashion department as a guy in his 20s.