Alterna free range is designed to provide and comfort t and prevent leakages. The spiral is a combination of materials designed for security and protection in a spiral-structure, for: Secure adherence to your skin. Absorption of moisture from your skin - providing skin friendliness and protection from irritation while the deep convexity in the 1 piece drainable is designed to help a stoma that is difficult to manage, for example a stoma that is retracted, or located in a deep skin fold or scar. It applies moderate to high pressure on the peristomal skin to reduce the risk of leakage by allowing the stoma to protrude.