A skin-protective device and a method for protecting skin against abrasion by attaching a pair of mutually overlying membranous layers to an area of a person's skin with only the peripheries of the layers interconnected with each other, so that the layers can slip along each other. An absorbent pad may be placed between one of the layers and the skin, and a quantity of a lubricant can be contained between the layers. The device is thin, to avoid causing pressure when it is used in restricted spaces, as within one's shoe.