THERMOS products deliver what matters every time. As the leading manufacturer of convenient insulated products for over 100 years, THERMOS is trusted by consumers to provide innovative portable containers that promote a safe and healthy lifestyle. THERMOS delivers when it matters. THERMOS brand products offer superior cold retention that keeps beverages cool and delicious for hours and the 12 ounce Funtainer Warm Beverage Bottle is no exception. THERMOS vacuum insulation technology virtually eliminates temperature change within the beverage container by creating an airless space between two stainless steel walls. The result is an insulation layer that performs better than any other. A superior insulated container you can depend on to keep your child's beverages warmer, fresher, longer. This warm beverage bottle keeps beverages warm up to 10 hours.