The Igloo® Sport Collection 15 oz. Food Jar is made of food grade 18/8 stainless steel and has a double wall vacuum insulated construction that keeps your hot food hot for 8 hours. The screw-on lid comes with a removable freezer puck which helps keep your cold food cold for 30 hours. The capacity increases to 17 oz. when freezer puck is removed. The wide opening is easy for utensil use or cleaning and the foam pad on the bottom prevents surface scratches. The powder coat finish is durable and sweat proof. This item is a perfect companion for office, school or outdoor activities. FDA Compliant & BPA Free