Layer system for attaching and/or removing a socket to a residual limb, having a proximal end and a distal end, comprising as components - an adhesion layer having two surfaces (2.1, 2.2), wherein the limb-facing surface of the adhesion layer (2.1) at least partially covers the residual limb during use and establishes contact with the residual limb through the formation of - an adhesion force, and a contact layer having two surfaces (3.1, 3.2), wherein the contact layer ∘ is arranged over the limb-opposite surface of the adhesion layer (2.2), such that the limb-facing surface of the contact layer (3.1) at least partially covers the second surface of the adhesion layer (2.2), ∘ is configured to provide positive-locking connection with the socket via the limb-opposite surface of the contact layer (3.2), characterized in that the layer system ∘ comprises a closure element for evacuating and/or ventilating a cavity formed between the adhesion layer and the contact layer, and ∘ comprises an attachment element at the distal end for releasably attaching the layer system to the socket, ∘ wherein the contact surface between the second surface of the adhesion layer (2.2) and the limb-facing surface of the contact layer (3.1) is configured airtight at the proximal end. - an adhesion layer having two surfaces (2.1, 2.2), wherein the limb-facing surface of the adhesion layer (2.1) at least partially covers the residual limb during use and establishes contact with the residual limb through the formation of - an adhesion force, and a contact layer having two surfaces (3.1, 3.2), wherein the contact layer ∘ is arranged over the limb-opposite surface of the adhesion layer (2.2), such that the limb-facing surface of the contact layer (3.1) at least partially covers the second surface of the adhesion layer (2.2), ∘ is configured to provide positive-locking connection with the socket via the limb-opposite surface of the contact layer (3.2), characterized in that the layer system ∘ comprises a closure element for evacuating and/or ventilating a cavity formed between the adhesion layer and the contact layer, and ∘ comprises an attachment element at the distal end for releasably attaching the layer system to the socket, ∘ wherein the contact surface between the second surface of the adhesion layer (2.2) and the limb-facing surface of the contact layer (3.1) is configured airtight at the proximal end. ∘ is arranged over the limb-opposite surface of the adhesion layer (2.2), such that the limb-facing surface of the contact layer (3.1) at least partially covers the second surface of the adhesion layer (2.2), ∘ is configured to provide positive-locking connection with the socket via the limb-opposite surface of the contact layer (3.2), characterized in that the layer system ∘ comprises a closure element for evacuating and/or ventilating a cavity formed between the adhesion layer and the contact layer, and ∘ comprises an attachment element at the distal end for releasably attaching the layer system to the socket, ∘ wherein the contact surface between the second surface of the adhesion layer (2.2) and the limb-facing surface of the contact layer (3.1) is configured airtight at the proximal end.