Foam Dressing McKesson 4 X 4 Inch With Border Film Backing Acrylic Adhesive Square SterileMcKesson Hydrocellular Foam Dressing, Acrylic Adhesive: 4 x 4 Inch (10. 2 cm x 10. 2 cm) Highly conformable and remains intact on skin. Skin friendly acrylic adhesive ensures secure attachment. Suitable for use as a dressing under compression wraps or unna boots. Adheres securely to dry, intact skin, sealing wound margins to prevent exudate leakage and minimize maceration risk. Features a breathable, moisture, and bacteria resistant outer film layer.