Abstract: A protective helmet includes a shell provided with an outer surface and an inner surface, at least one pad adapted, in use, to abut against the head of a user who wears the protective helmet, including at least one first surface and a second surface that are opposite each other, elements for the connection of at least one pad to the shell associated with the at least one first surface, wherein the at least one pad is shaped as a substantially laminar body and includes at least one layer deformable and configured in a manner such to allow the sliding and/or the relative rotation between the at least one first surface and the second surface following a shear stress.