For an ensemble that's very simple but can be styled in a great deal of different ways, try pairing a black double breasted blazer with blue skinny jeans. Finishing with derby shoes is an easy way to bring a dose of polish to this getup. There's nothing like a neat look to brighten up a dreary autumn day. As you're getting to your 30s, you probably want to start dressing like a grown-up. If that's the case, outfits like this become a great source of inspo.