A headgear (head cover) in the form of a hood or balaclava for protective clothing for civilian and/or military use, wherein the headgear has a headgear body (cap body) for head covering and a face field opening (field-of-vision opening) for receiving and covering the edge of a breathing mask (respiratory protection mask), wherein the headgear further comprises in the region of the face field opening: - an elastic and/or reversibly expandable sealing element for bearing in a preferably sealing manner on the breathing mask, wherein the sealing element is arranged circumferentially in the edge region of the face field opening, wherein the sealing element is at least substantially flat and/or wherein, in the wearing and/or application state, the sealing element lies at least substantially flat against the breathing mask, and - an edge section (peripheral section) at least partially covering and/or overlapping the sealing element on the outside and/or on its side facing away from the face field opening, the edge section being provided with a tension element, so that the edge section is formed to press and/or tension against the sealing element on the outside and/or in the direction of the face field opening, in particular in order thereby to press and/or apply the sealing element against the breathing mask in the wearing and/or application state, wherein the sealing element is in the form of a tape, in particular a flat tape, wherein the sealing element is connected at one of its two longitudinal edge regions to the head cover and/or to the edge portion and wherein the edge portion is connected at only one of its two longitudinal edge regions to the head cover and/or to the sealing element in such a way that the remaining unconnected region of the sealing element and the remaining unconnected region of the edge portion are configured to be freely movable one above the other and/or independently movable of one another, wherein the edge portion is arranged and/or positioned above the sealing element and/or externally (on the external side) in relation to the sealing element, and wherein the edge portion has a cavity circumferentially along the edge portion for receiving the tension element. wherein the headgear has a headgear body (cap body) for head covering and a face field opening (field-of-vision opening) for receiving and covering the edge of a breathing mask (respiratory protection mask), wherein the headgear further comprises in the region of the face field opening: - an elastic and/or reversibly expandable sealing element for bearing in a preferably sealing manner on the breathing mask, wherein the sealing element is arranged circumferentially in the edge region of the face field opening, wherein the sealing element is at least substantially flat and/or wherein, in the wearing and/or application state, the sealing element lies at least substantially flat against the breathing mask, and - an edge section (peripheral section) at least partially covering and/or overlapping the sealing element on the outside and/or on its side facing away from the face field opening, the edge section being provided with a tension element, so that the edge section is formed to press and/or tension against the sealing element on the outside and/or in the direction of the face field opening, in particular in order thereby to press and/or apply the sealing element against the breathing mask in the wearing and/or application state, - an elastic and/or reversibly expandable sealing element for bearing in a preferably sealing manner on the breathing mask, wherein the sealing element is arranged circumferentially in the edge region of the face field opening, wherein the sealing element is at least substantially flat and/or wherein, in the wearing and/or application state, the sealing element lies at least substantially flat against the breathing mask, and - an edge section (peripheral section) at least partially covering and/or overlapping the sealing element on the outside and/or on its side facing away from the face field opening, the edge section being provided with a tension element, so that the edge section is formed to press and/or tension against the sealing element on the outside and/or in the direction of the face field opening, in particular in order thereby to press and/or apply the sealing element against the breathing mask in the wearing and/or application state, wherein the sealing element is in the form of a tape, in particular a flat tape, wherein the sealing element is connected at one of its two longitudinal edge regions to the head cover and/or to the edge portion and wherein the edge portion is connected at only one of its two longitudinal edge regions to the head cover and/or to the sealing element in such a way that the remaining unconnected region of the sealing element and the remaining unconnected region of the edge portion are configured to be freely movable one above the other and/or independently movable of one another, wherein the edge portion is arranged and/or positioned above the sealing element and/or externally (on the external side) in relation to the sealing element, and wherein the edge portion has a cavity circumferentially along the edge portion for receiving the tension element.