Vented Urinary Leg Bag Combination Pack. The soft vinyl vented urinary leg bag helps limit unwanted odor while preventing urine backflow. Designed to be discreet and maintain a low profile. Features: Anti-reflux valve helps prevent urine backflow into the tubing, Vent helps prevent air buildup in the leg bag, providing a lower profile, Easy-to-operate drain valve, Low-profile buttons help secure the urine collection bag, Two size options available, Not made with natural rubber latex, contains sterile components, Combination pack includes: (1) vented urinary leg bag (medium or large), (1) extension tubing, with vacuum relief valve, with connector, (1) pair leg straps, medium (23")