Constructed of 90% recycled stainless steel for sustainable sipping, the Stanley Quencher H2.0​ Flowstate™ Tumbler 40oz helps you reach your hydration goals with fewer refills. Working, workouts, road trips — you’ll want this Stanley tumbler always by your side. Thanks to Stanley’s vacuum insulation, your water will stay cold for 11 hours, 2 days when iced.