This laid-back combination of a denim jacket and black jeans is a goofproof option when you need to look cool in a flash. And if you want to effortlessly perk up this outfit with shoes, why not add a pair of burgundy leather casual boots? During the winter months, when practicality is a must, it can be easy to settle for a less-than-stylish getup. But this getup is a stark illustration that you totally can stay snug and remain equally stylish in the winter months. If you're in your mid-20s, pay attention to getups like this to add more gravitas to your style.