This smart casual combo of a brown blazer and a tan dress shirt is extremely easy to throw together without a second thought, helping you look amazing and ready for anything without spending too much time searching through your wardrobe. To give your overall getup a smarter twist, add a pair of dark brown leather oxford shoes to the mix. With the departure of snow come warmer afternoons and balmy nights and the need for a cool ensemble just like this one. Pay attention to getups like this if you're looking to add more gravitas to your 20-year-old's wardrobe.