Whether you are taking a snack or lunch to work or heading out on an adventure, the Stainless Steel Food Jar will keep your foods hot or cold for hours. The new and innovative Therma Chamber lid along with Zojirushi’s superior vacuum insulation provides unparalleled heat retention. With a sleek, modern design and a matte finish, you will find one to match any taste. Vacuum insulated stainless steel food jar with the highest heat retention in Zojirushi history will keep foods hot or cold for hours. Durable and sanitary 18/8 stainless steel construction. New Therma Chamber lid designed with small chambers inside improves heat retention. Leak-proof* one-piece stopper with integrated gasket (*when used properly according to the instruction manual). The lid is designed to relieve pressure created by hot foods as it is opened. 2-7/8-inch wide opening makes it easy to fill, eat directly out of the jar, and makes cleaning a breeze. Rounded opening makes it smooth and comfortable to the touch when cleaning. Made with BPA-free plastic (all surfaces that come into contact with food and beverage).