A combination of a protective device for attaching to a shoe and the shoe, the shoe comprising a shoe sole and a front cap. The protective device includes a protective sole element and a protective cap element. The protective sole element can be placed on the shoe sole and has a sole shape which is adapted to the shape of the shoe sole, and the protective cap element can be placed against the front cap and has a cap shape which is adapted to the shape of the front cap. The protective sole element and the protective cap element are connected together via a joint, by which the front regions of the protective sole element and of the protective cap element are rotatably connected relative to each other and by which the protective device can be moved from a folded-out position into a folded-in position.