20 oz. Narrow-mouthed vacuum-insulated bottle. Features a flip-top straw lid with finger loop. Straw lid is not leak proof and not intended for use with hot liquids. Keeps contents cold for 24 hours. Powder coat finish with copper lining, double wall 18/8 stainless steel. BPA-free insulated lid. Bottle comes with both screw-on lid and straw lid.