Cymed MicroSkin - 8" Closed end Two-piece Colostomy Pouch with Filter can be used with all Cymed regular two-piece barriers This closed pouch includes a GORE-Tex Charcoal Filter which provides unmatched confidence and security by efficiently eliminating odors and releasing gas. The Cymed MicroSkin closed end two-piece colostomy pouch with filter was designed for one time use. These ostomy pouches attach to the flange with an adhesive seal. Since there are no hard plastic rings, the ostomate is more comfortable. This waterproof colostomy pouch is perfect for the shower, tub, swimming or other water activity. Simply pat dry when finished and continue about your day.