A navy shawl cardigan and navy and white sweatpants are a wonderful ensemble to have in your casual repertoire. For something more on the classier end to complete your look, add a pair of black leather casual boots to this getup. This ensemble is a pretty wonderful choice, especially for fall, when the temperature is starting to drop.
For an outfit that's very straightforward but can be flaunted in a multitude of different ways, try pairing a tan pea coat with navy and white sweatpants. For a truly modern hi/low mix, add a pair of black leather casual boots to the mix. This one is a viable option if you're picking out a well-coordinated ensemble for transitional weather.