If the situation allows casual styling, you can opt for a blue denim jacket and beige skinny jeans. Let your sartorial sensibilities really shine by finishing this getup with a pair of blue suede low top sneakers. Naturally, it's easier to work through a roasting hot afternoon in a cool look like this. Those who are curious how to pull off modern casual outfits as you drift through your 20s, this pairing should answer your question.