ConvaTec SUR-FIT Natura - 14" Drainable 2-Piece Ostomy Bag has a one sided comfort panel, odor barrier, and a transparent quiet film for comfort and discretion. The over-all pouch length is 14" which makes this ostomy pouch suitable for extended day or night time wear. The low profile and neutral color makes this bag easy to wear under regular clothing. SUR-FIT Natura uses a locking mechanism that is enhanced by an additional security flap. There is an air filter that allows gas to pass through which also works as an odor barrier. This is a drainable pouch that can be emptied and then closed back up with the included reusable clip. Two piece ostomy bags can be taken off of the ostomy wafer and then reattached without having to change the wafer. The ostomy wafer is sold separately, this bag works with Convatec Sur-Fit branded wafers. This specific Sur-Fit pouch has a large 4" flange opening. This larger size can accommodate a larger stoma or possible wound drainage. Consult your physician if you are unsure if this is the proper pouch for your specific wound care needs.