This combination of a red crew-neck sweater and a light blue chambray long sleeve shirt is extra versatile and creates instant appeal. If you don't know how to finish, a pair of dark brown leather casual boots is a nice choice. As days are getting cooler, you'll see that a look like this is perfect for the season. Gentlemen who are curious how to wear edgy casual dressing as you get into your 30s, you have your answer.