The Quencher H2.O Flowstate Tumbler | ToastThe Stanley Quencher H2. 0 is generously sized (but not oversized) with an easy carry, comfort grip handle and a narrow base that will fit most cup holders. Long day of meetings? Workout class? Trip out of town? This durable tumbler, made with recycled stainless steel, is up to the hydration challenge and fits in most car cup holders. The double wall vacuum insulation will keep your water cold for hours. And to cap things off, theres an advanced