Classic 500ml double wall travel mug with a handle which will keep drinks hot for longer. It is BPA-free and has a stainless steel outer wall with a polypropylene inner wall. Commuter has a secure push on lid with a splashproof sliding closure. It laser engraves to a shiny steel finish except for the stainless steel colour, which engraves to a natural etch. This product is not dishwasher safe and handwashing is recommended.