For a look that's pared-down but can be worn in a multitude of different ways, consider wearing a burgundy zip neck sweater and beige shorts. White leather low top sneakers will effortlessly play down an all-too-classic getup. You're sure to always look great even despite the oppressive heat if you keep this ensemble as a last-minute grab. A reliable option getup proper for 20-year-old gentlemen who like casual clothing.