Sipping is believing! The 20 oz. Denali tumbler features a stainless steel outer with plastic inner walls and a spill-resistant slide closure lid with rubber gasket and BPA-free. The box is is made with recyclable cardboard. Great as promotional product for gyms and other health and fitness organizations, but also could be branded for you college, picnic, company, or travel. This smooth bottle is available in an assortment of matte colors and comes with a variety of imprint methods to choose for your branding. Keep your clients hydrated with this box set!