Thermotastic Everyday Vacuum Insulated Stainless Steel Food Jar (Pink) Thermotastic vacuum insulation technology locks in temperature to preserve flavor and freshness to keep beverages hot for 7 hours or cold for 9 hours. Durable 18/8 stainless steel interior withstand the demands of everyday use. Vacuum insulated stainless steel, Durable interior and exterior, Suitable for indoor and outdoor use Therma-Venture is specially designed for home, office, cottage, camping, picnic, and hiking use. 500ml / 17oz Capacity.