A dark green long sleeve shirt and olive chinos are the kind of a tested casual outfit that you need when you have no extra time to dress up. Want to play it down when it comes to footwear? Complete this outfit with a pair of athletic shoes for the day. Keep this combo in your head when warmer days are here, and we promise you'll save a lot of time crafting an outfit on more than one occasion. An outfit completely worthy of a teenage boy's casual wardrobe.