Marlen SuperFlat One-Piece Systems are the flattest of all ostomy pouches. They are 50% thinner than a normal flange and are discreet as well. Marlen SuperFlat One-Piece Systems are equipped with charcoal filter that makes it odor-proof. All the SuperFlat Systems are quiet and leak-proof as well. Pouches can be used with Colostomy and Ileostomy. Many of the variety features Kwick-Klose fastener with extra-large drainage spout for easy emptying.