Premier One-Piece Drainable Ostomy Pouch Flat Flextend 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 Flextend barrier is an extended wear skin barrier that is durable and offers high resistance to erosion. To close the pouch, use the curved, beige clamp. Soft, beige ComfortWear pouch panels help provide comfort. Features: Flextend skin barrier, flat, Tape border, Cut-to-fit and pre-sized skin barriers, Ultra-clear, transparent and beige odour-barrier pouch film options, Curved, beige pouch clamp, Not made with natural rubber latex.