This 12-oz. BPA-free stainless steel leak-proof insulated food jar keeps food hot or cold for hours! Pack burritos, soup or chili in the morning, and lunch will be steaming when you are ready to eat. Pack smoothies, chicken salad or yogurt and it stays cool until lunchtime. Cool to the touch when filled with hot foods, and moisture-free when filled with cold foods. Similar to a thermos, our insulated food jar is double-walled and vacuum insulated. Dishwasher safe, top rack.