Go for a white turtleneck and black skinny jeans for a day-to-day outfit that's full of charisma and personality. Want to tone it down in the footwear department? Introduce a pair of black and blue athletic shoes to the mix for the day. As you can see, this ensemble is a really good idea, especially for in-between weather, when the temperature is dipping. And if we're talking casual clothing for 20-something men, this ensemble looks nice on almost any gentleman.