The Hollister 8531 colostomy pouch is flat, discreet and suitable for exercise. Trim-to-fit design makes it possible to match pouch's skin barrier to stoma size and shape for improved comfort. Interlocking fasteners produce secure closure to keep the Hollister colostomy bag 8531 from leaking. Flextend skin barrier is durable and, along with a tape border, keeps the pouch system securely in place.