Self-supporting contact dressing formed from a thin layer of a composition comprising a hydrophobic matrix and through holes, characterized in that said hydrophobic matrix comprises: - per 100 parts by weight of a styrene-saturated olefin-styrene triblock copolymer with a viscosity 0.2 to 2 Pa.s, measured in a 10% (w / w) solution in toluene; - from 400 to 1220 parts by weight of a plasticizer, preferably a plasticizing oil; and - 0 to 720 parts by weight of petrolatum; further specifying that: - the total amount of plasticizer and petroleum jelly is greater than or equal to 750 parts by weight; - the amount of petrolatum is between 400 and 720 parts by weight when the amount of plasticizer is between 1000 and 1220 parts by weight.Apósito de contacto autoportante formado a partir de una capa delgada de una composición que comprende una matriz hidrófoba y orificios pasantes, caracterizado porque dicha matriz hidrófoba comprende: - por 100 partes de peso de un copolímero tribloque de estireno-olefina saturada-estireno con una viscosidad de entre 0,2 y 2 Pa.s, medida en una solución al 10% (peso / peso) en tolueno; - de 400 a 1220 partes de peso de un plastificante, preferiblemente un aceite plastificante; y - de 0 a 720 partes de peso de vaselina; quedando además especificado que: - la cantidad total de plastificante y vaselina es superior o igual a 750 partes de peso; - la cantidad de vaselina está entre 400 y 720 partes de peso cuando la cantidad de plastificante está entre 1000 y 1220 partes de peso.