If you love casual combos, then you'll love this combo of a black long sleeve t-shirt and black jeans. To add a playful feel to your getup, rock a pair of black leather sandals. This outfit illustrates that as a 30-year-old, you have a wide array of outfit options.
A white and navy vertical striped long sleeve shirt and black jeans are the kind of a foolproof off-duty combo that you need when you have no extra time to plan an ensemble. Introduce a pair of black leather sandals to the mix to make a standard outfit feel suddenly edgier. If you're not sure how to dress age-appropriately but also look stylish, this ensemble is an amazing example.