The Caffe Vita Zojirushi Travel Mug is a stainless steel vacuum mug with Slick Steel finish. The tightly fitted lid keeps beverages hotter or colder than your average travel mug. It's made of BPA-free plastic and retains 187 DegreeF at 1 hr. / 153 DegreeF for 6 hrs. The stopper disassembles for thorough cleaning and the wide lip accommodates full-size ice cubes.