Consider wearing a navy cardigan and a long sleeve shirt to assemble an extra dapper and current off-duty outfit. The whole outfit comes together wonderfully if you grab a pair of brown leather casual boots. In the winter season, when functionality is essential, it can be easy to surrender to a less-than-stylish look. However, this look is a clear example that you totally can stay warm and remain equally stylish during the winter season. Take inspiration from outfits like this if you're on a mission to add more gravitas to your 20-year-old's look.