Stainless Steel Water Bottle Small mouth Vacuum Insulated: The Simple Modern Ascent water bottle is double walled and vacuum insulated, which keeps your favorite beverage hot or cold for hours Matte Powder Coated 18/8 Stainless Steel: Bottle is made from premium gauge 18/8 stainless steel and is powder coated in a durable matte finish Premium Copper Coated Insulation Layer: The exterior of the inner wall, in the vacuum sealed area, is coated in a thin layer of copper for added insulation Bottle Size: 25 oz. Height: 10.0 IN, Mouth Diameter: 1.8 IN, Bottom Diameter: 3.0 Inch. Package size : 11.1 IN (h) x 3.2 IN (W) x 3.2 IN(l)