Why do we go weak in the knees for a man in uniform? He could be a police officer, a military man, a fire fighter, or one of those guys in sexy brown pants who delivers nice packages (both in a box and in his pants!) to your doorâsomething about the uniform makes us stop and stare. A uniform transforms an everyday guy into a modern-day Superman, on who stands straighter, prouder. And one we can't wait to get naked. Because the only thing sexier than a man in uniform is a man out of uniform.