Sophisticated XD design is evident in this outstanding 350ml double wall tumbler which will keep drinks hot for longer. It has a stainless steel outer wall and a polypropylene inner wall. The tumbler has delightful shiny chrome accents and a secure push on lid with a splashproof sliding closure. It is BPA-free, laser engraves to a shiny steel finish and is beautifully presented in an XD gift box. This product is not dishwasher safe and handwashing is recommended.