Urinary Leg Bag Sterile. Hollister leg bags maintain a low profile as they rest discreetly against the leg with soft, pleated sides and are held comfortably in place with wide fabric straps. Features: Anti-reflux valve helps prevent urine backflow into the tubing, Convenience drain with easy-to-operate drain valve, Low-profile buttons on the bags help decrease the risk of pressure points while securing the bag, Available in a discreet 540 mL or 900 mL capacity, Not made with natural rubber latex, contains sterile components, Available in a combination pack