Better Quality of Life: The Conveen Optima catheter for men provides easy and reliable incontinence management. Anti-Leak Features: Combines several anti-leak designs including anti-kink tubing for unobstructed flow and a push ring for secure connection. Skin-Friendly Adhesive: Well-balanced adhesive gives strong adhesion while still being easy and painless to remove. PSX Silicone: Stretchy and breathable material ensures a comfortable fit for all-day wear. Large Size: Available in several sizes, this large size has a 35-millimeter sheath..