Features: Active Cath Male External Catheter is a self-adhering, one-piece latex catheter for active men who want extended wear. Combines a comfortable shortened latex sheath with a wide, watertight seal. Reservoir bulb prevents backflow of urine. Self-adhering, extended wear, one-piece latex catheter. Combines a comfortable shortened latex sheath with a wide, watertight seal. Reservoir bulb prevents backflow of urine.