Double wall vacuum-insulated to maintain temperature Spill resistant Tri-mode lid for flow control Non-slip silicone base Perfect for long journeys and amazing destinations. A strong and durable full powder coat finish keeps drinks tasting great, while the double-wall vacuum insulated stainless steel keeps them hot or cold for hours on end. The tumbler lid features tri-mode flow control, and the tapered design allows for a comfortable grip and a perfect fit in most cup holders. A non-slip silicone pad on the base grips surfaces to avoid scratches and spills.