The Thermos Dura-Vac 500ml Vacuum Insulated Food Jar Blue is made using the vacuum insulation technology to get maximum temperature retention. This lightweight and durable food jar from Thermoss Dura-Vac range features high-quality stainless-steel interior and exterior that withstands daily wear and tear. When it comes to insulated food and drink containers, Thermos is the brand you choose. For over 100 years theyve lead the charge with their selection of innovative products, each made with unmatched quality. Featuring Non-slip, scratch-resistant base, extra wide mouth for convenient filling and ergonomically designed lid, the Thermos Dura-Vac 500ml Vacuum Insulated Food Jar Blue is perfect for easy eating on the go! If you need your food to be kept warm or cold for longer, look no further than a Thermos!