A drainable ostomy appliance including: first and second walls connected to each other at or near their peripheries, the first wall having a stoma-receiving opening； a collecting cavity defined between the first and second walls； a connection member connected to the first wall for attaching the appliance to a user or for attaching the appliance to a flange for attaching the appliance to a user； an outlet which extends away from the stoma-receiving opening, the outlet having an opening for waste and the outlet being formed from at least one wall which terminates at a wall edge； and a stiffening member which is connected to the wall forming the outlet, the stiffening member being positioned such that it overlaps the edge of said wall effectively extending the length of the outlet.
