Great for exercising, hydrating at work or those long commutes, these 17 oz. bottles feature stainless steel outer and inner walls, copper lining, a screw-on, spill-resistant lid and a base that has decorative divots. They are also equipped with double wall vacuum insulation, designed to keep drinks hot for up to 8 hours and cold for up to 18 hours. Each bottle is offered in assortment of colors and can be customized with a one-color imprint on one side, two sides or full wrap.