Hollister Premier - 12" 1-Piece Drainable Ostomy Pouch (Lock'n Roll Closure) has an integrated convex shape. Ideal for those with recessed, retracted or flush stomas. The FlexTend skin barrier is Hollister's most discharge-resistant skin barrier, and is designed for extended wear. The drainable pouch features an odor-barrier and rustle-free film for protection from embarrassing odors and pouch noises. Easy to close, simply roll three times and press together....feel the seal.