For a laid-back and cool look, dress in a double breasted blazer and a white and navy crew-neck t-shirt — these pieces play really well together. To add a little fanciness to this look, complement this ensemble with a pair of black suede chelsea boots. So if you're looking for a look that's sharp but also feels totally season-appropriate, this one is great. Wondering how to perfect casual style as you become older? This combination is the perfect answer.