For an ensemble that's super simple but can be manipulated in a great deal of different ways, wear a red and white long sleeve shirt and a burgundy plaid long sleeve shirt. Finishing off with brown leather loafers is an effective way to add a little classiness to this outfit. Nothing like a kick-ass look to spice up a gloomy autumn day. Think it's hard for teenagers to master semi-casual style? This combo should prove you wrong.