If you’re a jeans-and-a-tee kind of dresser, you'll like the low-key combination of a brown field jacket and jeans. For an on-trend hi/low mix, complete your look with dark brown suede chelsea boots. Can you see how very easy it is to look seriously stylish and stay cozy come fall, all thanks to outfits like this? When it comes to casual fashion for 20-something guys, this look is ideal.