A clip for mounting a pad to a vehicle structure, the clip comprising a body having a central base region and a pair of outer arm regions (28, 30), one outer arm region on either side of the base region, the outer arm regions being movable relative to the base region between: a closed configuration of the clip in which the outer arm regions (28, 30) extend at an angle relative to the base region so that the body is generally U-shaped, with inner faces (38, 40) of the outer arm regions (28, 30) in opposed relation to one another; and: an open configuration in which the outer arm regions (28, 30) are spaced further apart than in the closed configuration, at least one arm region having a pad aperture engaging lug projecting from its inner face (38, 40), the clip having a locking arrangement (64, 66) configured to hold the clip in the closed configuration, and at least one mounting formation for securing the clip to a vehicle structure when in the closed configuration; wherein the mounting formation comprises at least one feature preventing rotation thereof relative to the vehicle structure; and wherein the mounting formation further comprises at least one feature preventing translational movement thereof relative to the vehicle structure; and in that at least one pad aperture engaging lug comprises at least one anti-rotation feature; and wherein the locking arrangement comprises corresponding locking formations (64, 66) mounted to the outer arm regions (28, 30), the locking formations being configured to inter-engage when the clip is in the closed configuration to lock the clip in the closed configuration; wherein one locking formation has a surface forming at least part of a cone, and the other formation comprises an aperture arranged to receive said at least partconical form; and wherein the locking formations (64, 66) are configured to inter-engage with a snap-fit; and wherein the locking formations (64, 66) are moulded onto and into locking formation base parts which comprise anti-rotation features comprising at least four tapered sides. an open configuration in which the outer arm regions (28, 30) are spaced further apart than in the closed configuration, at least one arm region having a pad aperture engaging lug projecting from its inner face (38, 40), the clip having a locking arrangement (64, 66) configured to hold the clip in the closed configuration, and at least one mounting formation for securing the clip to a vehicle structure when in the closed configuration; wherein the mounting formation comprises at least one feature preventing rotation thereof relative to the vehicle structure; and wherein the mounting formation further comprises at least one feature preventing translational movement thereof relative to the vehicle structure; and in that at least one pad aperture engaging lug comprises at least one anti-rotation feature; and wherein the locking arrangement comprises corresponding locking formations (64, 66) mounted to the outer arm regions (28, 30), the locking formations being configured to inter-engage when the clip is in the closed configuration to lock the clip in the closed configuration; wherein one locking formation has a surface forming at least part of a cone, and the other formation comprises an aperture arranged to receive said at least partconical form; and wherein the locking formations (64, 66) are configured to inter-engage with a snap-fit; and wherein the locking formations (64, 66) are moulded onto and into locking formation base parts which comprise anti-rotation features comprising at least four tapered sides.