Premier One-Piece Drainable Ostomy Pouch Flat FlexWear Barrier, Clamp Closure, Tape. A one-piece, drainable pouching system designed to be opened at the bottom when emptying. These pouches are most suitable for colostomies or ileostomies. The FlexWear barrier is a skin barrier that provides excellent adhesion to the skin and is designed to be worn for more than one day. To close the pouch, use the curved, beige clamp. Soft, beige ComfortWear pouch panels on body side help provide comfort. Features: FlexWear skin barrier, flat, Tape border, Cut-to-fit skin barrier, Ultra-clear odour-barrier pouch film, Curved, beige pouch clamp (1/box), Not made with natural rubber latex.