For an ensemble that's pared-down but can be styled in a ton of different ways, dress in a dark green knit wool turtleneck and white chinos. Dark brown leather desert boots will instantly spruce up even the simplest ensemble. Keep this getup in your head come warmer days, and we guarantee you'll save a lot of time crafting a look on more than one morning. Interested in fashion for 20-year-old guys? This combo should go straight to your favorites.