Medifeliz 10406 Two Piece Colostomy Bag Opaque 60mm       View Port: The hidden stoma observation window is convenient for doctors and patients to observe the stoma. Sealing Method: Three sealing methods are available Activated Carbon Filter:  Activated carbon filter to effectively remove odors The Bag Body: Outer Lining Non-woven Fabric, High barrier film, soft and strong Good airtightness, and no leakage Waterproof fabric: that stays fresh for a long time Good airtightness and no leakage