A black floral short sleeve shirt and light blue skinny jeans are the kind of casual staples that you can style a hundred of ways. If you wish to effortlessly up the ante of your outfit with a pair of shoes, why not complement your getup with a pair of black print canvas low top sneakers? You're guaranteed to always look cool even despite the summer heat if you keep this ensemble as your go-to formula. Those who are curious how to pull off modern casual outfits as you move into your 30s, you have your answer.