A pack for smoking articles comprising: a group of smoking articles; an inner container, which houses the group of smoking articles; an outer container, which houses, on the inside and in a sliding manner, the inner container so as to allow the inner container to slide relative to the outer container between a closed position, in which the inner container is completely inserted inside the outer container, and an open position, in which the inner container is partially extracted from the outer container through an opening of the outer container; and a locking system which prevents the inner container from sliding from the closed position to the open position, can be deactivated by means of an external action of the user, who allows the inner container to slide from the closed position to the open position, and can be reactivated by moving the inner container from the open position to the closed position; the locking system comprises: an abutment element, which is integral with the outer container and is arranged inside the outer container; a first wing, which is integral with the inner container, is movable relative to the inner container and is configured to abut against the abutment element of the outer container when the inner container is in the closed position, thus preventing the inner container from sliding from the closed position to the open position; and a second wing, which is obtained on the outer container, is arranged at the first wing and is movable relative to the outer container so as to be pressed inwards and, hence, move the underlying first wing accordingly in order to release the first wing abutting against the abutment element and, by so doing, allow the inner container to slide from the closed position to the open position; the pack is characterized in that the first wing is hinged to a rear wall of the inner container along a hinge; wherein the rear wall is opposite to the opening of the outer container and extends along a direction parallel to the prevailing development direction of the pack and the first wing normally protrudes outwards from an upper end of the inner container; the second wing is obtained at an upper wall of the outer container, which is transversal to the prevailing development direction of the pack, so as to at least partially overlap the first wing; and the abutment element is obtained at an inner surface of the upper wall of the outer container. a group of smoking articles; an inner container, which houses the group of smoking articles; an outer container, which houses, on the inside and in a sliding manner, the inner container so as to allow the inner container to slide relative to the outer container between a closed position, in which the inner container is completely inserted inside the outer container, and an open position, in which the inner container is partially extracted from the outer container through an opening of the outer container; and a locking system which prevents the inner container from sliding from the closed position to the open position, can be deactivated by means of an external action of the user, who allows the inner container to slide from the closed position to the open position, and can be reactivated by moving the inner container from the open position to the closed position; the locking system comprises: an abutment element, which is integral with the outer container and is arranged inside the outer container; a first wing, which is integral with the inner container, is movable relative to the inner container and is configured to abut against the abutment element of the outer container when the inner container is in the closed position, thus preventing the inner container from sliding from the closed position to the open position; and a second wing, which is obtained on the outer container, is arranged at the first wing and is movable relative to the outer container so as to be pressed inwards and, hence, move the underlying first wing accordingly in order to release the first wing abutting against the abutment element and, by so doing, allow the inner container to slide from the closed position to the open position; the pack is characterized in that the first wing is hinged to a rear wall of the inner container along a hinge; wherein the rear wall is opposite to the opening of the outer container and extends along a direction parallel to the prevailing development direction of the pack and the first wing normally protrudes outwards from an upper end of the inner container; the second wing is obtained at an upper wall of the outer container, which is transversal to the prevailing development direction of the pack, so as to at least partially overlap the first wing; and the abutment element is obtained at an inner surface of the upper wall of the outer container.