The best choice for a killer casual look for men? A blue chambray long sleeve shirt with khaki chinos. A pair of dark brown suede tassel loafers will introduce a refined aesthetic to the getup. If you're looking for a summer-friendly outfit, here is a great one. As you're going from your 20s to your 30s, you probably want to start dressing like a grown man. If that's the case, outfits like this come in very useful.