Make a dark green crew-neck sweater and a long sleeve shirt your outfit choice if you seek to look laid-back and cool without much effort. Let your sartorial credentials really shine by completing this ensemble with brown leather brogue boots. During the colder months, when warmth is imperative, it can be easy to settle for a less-than-stylish look. However, this look is a striking illustration that you can actually stay toasty and remain stylish in the colder months. As an over-50 guy, you're guaranteed to like this combo.