The Rusch EasyTap Leg Bag from IndeMedical.com is made of high grade vinyl material (PVC) and contains an anti-reflux valve. It is available in 500 mL and 1000 mL. The leg bag is secured with two cloth straps with buttons. It also contains a flip valve for easy emptying. Not made with natural rubber latex. Disposable. Not designed for extended use. Wear a few days and discard.