... free,lightness & poratable,PP body,glass liner This vacuum flask bottle is the perfect ideal for hiking. 1 ... .Hight quality and competitive price3.Superior insulation performance vacuum technology;4.Keeps liquids hot/cool hours;5 ... .PP body,glass liner vacuum,long time heat preventation;6.Heat resistant ... please don't hesitate to contact. Vacuum flask&thermos with 2 cups,PP body,glass liner ...