This city casual combination of a white and red and navy plaid flannel long sleeve shirt and black jeans is super easy to pull together without a second thought, helping you look dapper and ready for anything without spending a ton of time combing through your wardrobe. Feel somewhat uninspired with this ensemble? Let white athletic shoes switch things up. You're sure to always look cool even despite the unbearable heat if you have this ensemble as your go-to formula. Those who are curious how to sport cool off-duty looks as you make your way through your 20s, this getup should answer your question.