Try teaming a hoodie with a white crew-neck t-shirt to pull together a seriously stylish and casual street style outfit. You can get a little creative in the footwear department and elevate your look by wearing a pair of black leather casual boots. We love how perfect this getup is to keep you snug and stylish when the cold days hit. As you're moving from your 20s to your 30s, you probably want to start dressing more maturely. If that's the case, combinations like this are perfect as inspiration.