Dress belts or formal belts as usually won with suits, blazer, and casual business wear. They are not restricted to formal wear; they can be worn on causal outfits too. Your dress belt should also match your dress shoes. Dress belts are thin than for other belt, and generally have a glossy finish which shines. Typically formal belts come in shades of black, brown and tan but colours can also be worn, if it goes with your outfit. They are reversible belt; one side is black while the other is brown in color.