A navy waistcoat and beige dress pants are absolute essentials if you're figuring out a classy closet that holds to the highest men's fashion standards. For something more on the daring side to complete this outfit, introduce dark brown suede tassel loafers to the equation. A cool outfit like this one is just what you need come baking hot sunny days. If you're 20, take cues from combos like this to add more maturity to your wardrobe.