Urban Oasis Wide Mouth Flip Lid makes it easy to flip up and drink your favorite drink. Featuring a flip-up opening and a rubber stopper to plug the opening which prevents spills when not in use. Made to keep the temperature of your drink cool or hot all day long. The flip up lid is BPA free, recyclable, reusable, non-leaching and will not retain tastes or odor. Fits 18 oz, 40 oz and 64 oz wide mouth vacuum insulated drinking containers.