This pairing of a sweater vest and dark green dress pants is incredibly smart and creates instant appeal. Hesitant about how to finish? Complete this outfit with dark brown leather double monks to shake things up. Loving how ideal this look is to keep you snug and stylish when cold weather arrives. As you get into your 30s, you want to start dressing in a classier manner. In this case, looks like this are a surefire option.