Parade your chops in menswear styling by putting together a white cable sweater and black ripped jeans for an off-duty look. To give this look a dressier vibe, why not introduce black leather chelsea boots to the equation? During the winter months, when functionality is key, it can be easy to surrender to a less-than-stylish look in the name of convenience. However, this look is a striking example that you can actually stay snug and remain stylish at the same time during the winter months. Relaxed casual looks for gentlemen in their 30s aren't actually that hard, as you see here.