PURE Thermos FlaskThe PURE thermos is a work of art and a cut above the ordinary. We love this thermos and are proud to put PURE's name on it and offer it to all of you. Made from the finest materials, we use #316 stainless steel, the toughest and most corrosion resistant of all the food grade stainless steels to seal in all the juicy goodness of your fresh produce. Instead of painting, we apply a scratch proof coating and finish with a cap made from sustainable