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 splash proof sliding closure. It laser engraves to a stainless steel finish and is BPA free. It is beautifully presented in an XD gift box and handwashing is recommended.