The invention relates to a TTS with backing layers that guarantee a high wear comfort and that facilitate application in regions of the human body that are subject to great mechanical loads, especially the large joints of the extremities. The inventive backing layers overcome the disadvantages with respect to reduced absorption of the active substance by the skin that are typically associated with such backing layers. The inventive systems are preferably used for the local of systemic administration of anti-inflammatory and pain-relieving active substances.