You're looking at the definitive proof that a green shearling jacket and brown skinny jeans look awesome when matched together in a casual outfit. During winter, when warmth is critical, it can be easy to settle for a less-than-stylish ensemble. However, this ensemble is a shining example that you can actually stay comfy and remain stylish at the same time during winter. When it comes to casual dressing ideas for men over 30, this combo looks cool on most men.