If you put function above all, this laid-back combination of a white and black print crew-neck t-shirt and beige skinny jeans is for you. If you want to easily rev up this outfit with shoes, introduce white and navy leather low top sneakers to the equation. Naturally, it's easier to work through a summertime day in a light and breezy getup like this. Gentlemen wondering how to dress stylishly as you go into your 30s, you have your answer.