A composition or wound dressing 200 for application to a wound comprising a first layer 204 comprising a skin adhesive, wherein the first layer has a wound-facing side and a non-wound-facing side and, in a first area, apertures 205 extend through the first layer from the wound-facing side to the non-wound-facing side; and a second layer 202 disposed on a non-wound-facing side of the first layer, the second layer comprising a polymeric film that is continuous in that it extends over and covers each of the apertures of the first layer, the second layer having a moisture vapour transmission rate (MVTR) of at least 500 g/m2/24 hours, measured in accordance with BS EN 13726-2:2002, wherein the composition further comprises a third layer 203 disposed between the first layer and second layer, the third layer being a supporting layer for the first layer, the third layer having apertures therethrough, substantially corresponding to the apertures in the first layer. A method of making such a composition is also disclosed. The skin adhesive may be selected from a silicone, an acrylic, a hydrocolloid and a polyurethane. The second and third layer may comprise a polyurethane film. A fourth layer may disposed between the third and first layers, this may comprise an acrylic adhesive.