Keep your favorite beverage hot, cold, or iced for hours. Adventure Quencher's double-wall vacuum insulation. A rotating lid on this stainless steel tumbler gives you the choice of a straw opening, wide mouth, and a full-cover top to prevent spills. Take it with you to your favorite studio workout, on your commute, or let it be your desk companion--just choose your tumbler size for all-day, on-the-go hydration.