Combining a tan parka with beige chinos is a good pick for a casual but sharp getup. A trendy pair of desert boots is a simple way to bring a touch of class to this look. In the colder months, when warmth is everything, it can be easy to settle for a less-than-stylish outfit. This outfit, however, is a practical illustration that you totally can stay comfy and remain equally stylish in the colder months. When it comes to casual fashion for 30-something guys, this ensemble looks cool on almost any gent.