A system for forming a composite compressive component for a negative pressure wound therapy, NPWT, dressing for treating a deep abdominal wound, the system comprising: a first compressive material having a first compression ratio, the first compressive material including a first pattern of concentric perforations configured to form at least a first detachable compressive component segment , wherein the first detachable compressive component segment has an elliptical shape; and a second compressive material having a second compression ratio different than the first compression ratio, the second compressive material including a second pattern of concentric perforations configured to form at least a second detachable compressive component segment (238"), the second detachable compressive component segment (238") including a through-opening configured to receive the first detachable compressive component segment in a friction fit, wherein the second detachable compressive component segment (238") has an elliptical ring shape; a third compressive material having a third compression ratio different than the first compression ratio and the second compression ratio, the third compressive material including a third pattern of concentric perforations configured to form at least a third detachable compressive component segment (242"'), the third detachable compressive component segment including a through-opening configured to receive the second detachable compressive component segment (238") in a friction fit to form the composite compressive component , wherein the third detachable compressive component segment has an elliptical ring shape, wherein the first pattern of concentric perforations , the second pattern of concentric perforations , and the third pattern of concentric perforations are the same pattern of elliptical concentric perforations, and wherein the first compressive material , the second compressive material , and the third compressive material are a felted foam. a first compressive material having a first compression ratio, the first compressive material including a first pattern of concentric perforations configured to form at least a first detachable compressive component segment , wherein the first detachable compressive component segment has an elliptical shape; and a second compressive material having a second compression ratio different than the first compression ratio, the second compressive material including a second pattern of concentric perforations configured to form at least a second detachable compressive component segment (238"), the second detachable compressive component segment (238") including a through-opening configured to receive the first detachable compressive component segment in a friction fit, wherein the second detachable compressive component segment (238") has an elliptical ring shape; a third compressive material having a third compression ratio different than the first compression ratio and the second compression ratio, the third compressive material including a third pattern of concentric perforations configured to form at least a third detachable compressive component segment (242"'), the third detachable compressive component segment including a through-opening configured to receive the second detachable compressive component segment (238") in a friction fit to form the composite compressive component , wherein the third detachable compressive component segment has an elliptical ring shape, wherein the first pattern of concentric perforations , the second pattern of concentric perforations , and the third pattern of concentric perforations are the same pattern of elliptical concentric perforations, and wherein the first compressive material , the second compressive material , and the third compressive material are a felted foam. <EOS>