Protection for part of the human body comprising: a flexible surface to be laid on the part to be protected, and a plurality of flexible elements projecting from the surface along a same direction substantially orthogonal to the surface, one or each protruding element comprising, or being constituted of, two flexible concentric rings (30, 40), one external and the other internal relatively, wherein the external ring: surrounds the internal ring, extends from the surface orthogonally thereto, and at the edge opposite the surface is attached to and integral with the internal ring along a common edge, and the internal ring: extends towards the surface orthogonally thereto and has an edge attached to and integral with the external ring along said common edge, characterized in that said rings (30, 40) - have a common edge, being their most distant part from the surface and the part that is hit first by an external object, forming an angle (β), and - are configured so that a stress of the object causes the two rings (30, 40) to deform and, as the common edge approaches the surface, the angle (β) formed by the rings (30, 40) with vertex at the common edge, tends to increase. a flexible surface to be laid on the part to be protected, and a plurality of flexible elements projecting from the surface along a same direction substantially orthogonal to the surface, one or each protruding element comprising, or being constituted of, two flexible concentric rings (30, 40), one external and the other internal relatively, wherein the external ring: surrounds the internal ring, extends from the surface orthogonally thereto, and at the edge opposite the surface is attached to and integral with the internal ring along a common edge, and surrounds the internal ring, extends from the surface orthogonally thereto, and at the edge opposite the surface is attached to and integral with the internal ring along a common edge, and the internal ring: extends towards the surface orthogonally thereto and has an edge attached to and integral with the external ring along said common edge, extends towards the surface orthogonally thereto and has an edge attached to and integral with the external ring along said common edge, characterized in that said rings (30, 40) - have a common edge, being their most distant part from the surface and the part that is hit first by an external object, forming an angle (β), and - are configured so that a stress of the object causes the two rings (30, 40) to deform and, as the common edge approaches the surface, the angle (β) formed by the rings (30, 40) with vertex at the common edge, tends to increase. - have a common edge, being their most distant part from the surface and the part that is hit first by an external object, forming an angle (β), and - are configured so that a stress of the object causes the two rings (30, 40) to deform and, as the common edge approaches the surface, the angle (β) formed by the rings (30, 40) with vertex at the common edge, tends to increase. a stress of the object causes the two rings (30, 40) to deform and, as the common edge approaches the surface, the angle (β) formed by the rings (30, 40) with vertex at the common edge, tends to increase.