Great for your morning oatmeal or lunchtime gazpacho, the Hydro Flask 18 oz. Food Flask will keep your meal hot or cold for up to 3 hours. Each Hydro Flask is cast from double wall vacuum insulated food grade 18/8 stainless steel. Vacuum flask will maintain food temperature for 3 hours to ensure a satisfying meal. Vacuum design also prevents scorched hands from hot drinks and condensation from cold drinks. 18/8 stainless steel is naturally resistant to odors and bacteria. Ice cubes from standard refrigerator/freezer door ice dispensers fit perfectly. Food Flasks are not microwave safe. Matte finish. Holds 18 oz./532 mL. 3.07 in. wide mouth. Measures 3.45 in. wide x 7.1 in. tall. Weighs 13.6 oz.. Imported.