Show off your mellow side by opting for a light blue denim shirt and black skinny jeans. All you need now is a pair of white leather high top sneakers to complement this outfit. If it's one of those bleak fall afternoons, what better to brighten it up than a stylish getup like this one? Those who wonder how to wear edgy off-duty outfits as you move into your 30s, you have your answer.