necessary a wedge shaped insert or an insert made from latex and or silicone may be provided and this significantly increases grip on the extremity stump and skin of a person wearing the protective device otherwise the material of the protective device or the cuff or sleeve or collar like device 130 has a degree of elasticity at least in the area of the arm section adjacent to the upper arm end and in the upper arm end area so that it is able to lie particularly snugly and tight against the extremity stump and is able to create a tight closure against the skin of the person wearing the prosthesis fig2 a and 2 b show a second embodiment of a protective device 1 in the form of a sleeve this embodiment being very similar in principle to the embodiment shown in fig1 a and 1 b unlike that embodiment however the protective device 1 of fig2 a and 2 b does not have an upper arm end with affixed latex and or silicone instead inside of the upper arm end in the form of a cuff or sleeve or collar like device 130 facing towards the person wearing the protective device is provided with a smooth surface having adhesive properties particularly produced from a smooth skin neoprene u00ae the upper arm end may be attached to the rest of the material of the protective device or it may be produced as an integral part thereof in order to ensure waterproofing when lying on the skin of a person wearing the protective device 1 a skin adhesive 131 may additionally be applied to the smooth surface which already has inherent adhesive properties thus enabling a particularly.