Try teaming a black pea coat with black skinny jeans for a killer ensemble. Boost the dressiness of your getup a bit by finishing off with brown leather casual boots. You can see here this look is also a great example of looking stylish in the colder months. As a gent in his 30s, you probably want to start dressing maturely. If that's the case, looks like this prove useful as a source of inspo.