A beige trenchcoat and a crew-neck t-shirt are absolute essentials if you're planning a semi-casual wardrobe that matches up to the highest menswear standards. Avoid looking overdressed by finishing off with a pair of black leather sandals. Keep this getup in your front hall closet come spring, and we guarantee you'll save a ton of time brainstorming for what to wear on more than one morning. No doubt, a smart idea if we're talking fashion for teenage boys.