Sandy neutrals emerged as a prime trend a couple seasons ago and hasn't gone away yet. As you see in the pictures, it works in both dressy and casual situations. Brad Pitt chose to go casually monochromatic, but feel free to mix it up. Any combination of light tans, putty, ivory, and other pale earth tones come together to create a breezy summer palette. A group of men walking through Pitti show how to take it to the next level with jackets and trousers.
The nice thing about this trend is that it shouldn't break your pocket book. Most likely you already have a pair of light khakis at home. Pick yourself up a nice light gray sweater (which you can layer under a black sport coat with jeans during winter months) or a neutral linen jacket. These are staple pieces that will transcend trends, so don't be afraid to invest in quality.