This combination of a white crew-neck t-shirt and black dress pants couldn't possibly come across as anything other than incredibly stylish and casually classic. For something more on the cool and laid-back end to complete this look, introduce white leather low top sneakers to the equation. During the colder months, when functionality is crucial, it can be easy to settle for a less-than-stylish ensemble in the name of convenience. However, this ensemble is a vivid example that you totally can stay snug and remain equally stylish in the colder months. This ensemble demonstrates that as a guy in his 20s, you have a wide range of styling options.