A dark brown overcoat and a brown double breasted blazer are absolute must-haves if you're putting together a refined wardrobe that matches up to the highest sartorial standards. In the winter season, when warmth is imperative, it can be easy to surrender to a less-than-stylish outfit in the name of practicality. This outfit, however, is a striking example that you totally can stay cozy and remain stylish at the same time during the winter season. So if you need style ideas on how to dress after 30, this ensemble is an amazing example.