ConvaTec SUR-FIT Natura - Ostomy Flange Stoma Cap with Filter is a closed end pouch that requires little maintenance. It is perfect for active lifestyles that may include traveling, swimming, intimacy and bathing. No draining or clips are required with this pouch. When the stoma cap is full, simply remove and discard. It is quiet and odor proof, providing discreet comfort. The included filter helps reduce gas buildup. A wonderful product for those on the go, it audibly clicks to the skin barrier for a confident seal.