Smith & Nephew Opsite Transparent Adhesive Dressing 5-1/2" x 4", Waterproof Film, Moisture Vapor Permeable -Box of 10 Each. Product is manufacturered and licensed by Smith & Nephew . Product is categorized as a adhesive film dressings . HCPCS: A6258 . Smith & Nephew Opsite Transparent Adhesive Dressing 5-1/2" x 4", Waterproof Film, Moisture Vapor Permeable. Smith & Nephew Opsite Transparent Adhesive Dressing is a moisture vapor permeable, conformable and extensible dressing. It is widely used to provide a moist wound environment for superficial wounds and is also ideal for use as a secondary dressing. Superior film with acrylic adhesive. Simple, effective application technique. Adaptable to awkward areas. Opsite provides moisture vapor permeability allowing excess exudate to evaporate, helping prevent skin maceration.