This 3.2L vacuum flask is made of PP plastic shell and glass inner liner for durability. The inner liner is replaceable.Large Capacity 3.2L Water Bottle Vacuum Insulated Thermal Flask Multi Color HotItem No.: Vacuum Flask #7can be hot, can be cold; versatile container. Material: Glass Inner / PP Outer Color: Customizedcolors can be customized Contact Details: WhatsApp & E-mail E-mail: sales@hocentre.com ; E-mail: aileen@hocentre.com . Capacity: 3.2L