This off-duty pairing of a white cardigan and blue jeans is very easy to throw together in next to no time, helping you look amazing and ready for anything without spending a ton of time digging through your wardrobe. You can stick to a classier route when it comes to footwear by slipping into beige suede loafers. This combination is a wonderful idea when spring comes. As a 30-something Millennial guy, you probably want to start dressing like a grown-up. In this case, getups like this are ideal as inspiration.