Meily&reg; Women Lunch Box Tote Cooler Bag Imported Material: Linen Cotton + Aluminum PackIt is a freezable lunch cooler designed to keep contents cooler, longer: up to 10 hours (depending on external temperatures) Perfect for healthy foods: dairy, fruits and veggies stay fresh all day, reducing waste and saving money Perfectly sized to fit into all types of lunch bags and boxes Ice pack is Freezer safe Do not place in dishwasher or microwave Keeps lunch cool and fresh until lunch time