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.