3M™ Tegaderm™ High Performance Foam Adhesive Dressing is a highly absorbent, breathable wound dressing. It is constructed from a conformable polyurethane foam pad, additional absorbent nonwoven layers, and a top layer of transparent adhesive film. This film is moisture vapor permeable which prevents wound exudate strike-through and acts as a barrier to outside contamination, including bacteria and viruses.* The dressing maintains a moist wound environment, which has been shown to enhance wound healing. The dressing is supplied sterile.