Hydration is a must, and this Stanley Quencher ProTour Flip Straw Tumbler (40 oz) makes quenching your thirst a thing of style. Its recycled stainless steel construction is equipped with double-wall vacuum insulation and a leakproof ProTour Flip Straw lid—the perfect grab-and-go container designed to keep your beverage refreshingly cold for the course of your busy day.