Cymed MicroSkin Ostomy Bag - 11" Drainable One-piece Plain Barrier (Cut to Fit) has a unique adhesive barrier that is durable, breathable and waterproof. These colostomy bags do not have a filter. They are cut-to-fit up to a 1 3/4" stoma size. Can be used while swimming or while bathing or showering. Cymed Microskin is designed for ostomates who lead active lifestyles. The plain barrier is available in opaque as well as transparent styles. This is a one-piece drainable ostomy pouch. Sold in a box of 10.