Hollister Karaya 5 One Piece Systems are equipped with seal ring that protects the skin from stomal discharge. The transparent pouches give you better visibility and convexity helps in better stoma fitting. All the Hollister Karaya 5 One Piece Systems are reliable and skin-friendly. Many pieces offer Security and confidence by highly effective deodorizing and venting filter made of activated carbon granules while porous tape keeps skin healthy by allowing it to breathe.