The Natura® ostomy system is a comprehensive product line with our latest skin barrier technologies. The plastic coupling ring allows the pouch and skin barrier to snap together for audible security. Durahesive® skin barriers are designed for people whose stoma output is mostly liquid. Unlike other skin barriers that can breakdown around liquid output, Durahesive® skin barriers swell up to better protect the stoma and peristomal skin. Convex is good for people with a recessed or flat stoma. Moldable allows for improved skin protection over traditional barriers.