Cymed MicroSkin - Adhesive Ostomy Barrier/Flange (Cut to Fit) is made of a thin, elastic hypoallergenic polyurethane film that is durable, transparent, and breathable. This skin barrier is waterproof and works in the shower, swimming pool or hot-tub. This universal skin barrier flange works well with all Cymed two-piece pouches with exception of the CYM68100. The MicroDerm Washer provides extra protection and support to the skin around the stoma. Choose the washer width that works best for you.