Abstract: The invention relates to an arm (2) for spectacles (1) including a frame (6), characterized in that it comprises at least one decorative sleeve (7) at least partially made of an elastically deformable material, provided with at least one decorative surface (70a, 70b) and mounted around the frame (6) of the arm (2), said sleeve (7) being designed to turn and/or twist around the frame (6) by means of elastic deformation in order to modify the appearance of said arm (2). The invention also relates to the spectacles (1) provided with such an arm (2).