simply simily. Stainless Steel Water Bottle - Wide Mouth - BPA Free - Double Walled Vacuum Insulated, 40 Oz Stainless steel water bottle Corrosion resistant body Double wall insulation Build large capacity - wide mouth designed and holds up to 40 oz. of liquid, toxin free, bpa free, and packed in eco-friendly box Easy to clean - unlike others on the market, our vacuum flask is leak resistant and designed with an extra wide neck