The Rambler™ series, famous cold-retaining properties keep frozen beverages icy for hours, and now the Straw Lid makes them easy to enjoy. The wide, durable drinking straw makes this the perfect lid for smoothies, slushies, and more. Unlike other insulated cups with straws, the Rambler™ Straw Lid is built to last and has a molded-in stopper that holds your straw safely in place. The YETI Rambler 20 oz. Straw Lid features: Shatterproof design Dishwasher safe Completely free of BPA