Impressive 500ml double wall, vacuum insulated stainless steel mug with a smart powder coated matt finish. It will keep drinks hot or cold for up to six hours. Stealth has a wide top opening with a secure screw on lid and a push button activated flip closure which is spring loaded for smooth, effortless operation. The lid prevents leaks and spills even if the cup is knocked over and it is so robust it can be carried in a bag or a back pack. It is ideal for coffee as well as taking soup and food to work or school. The mug laser engraves to a stainless steel finish and is BPA free. It is presented in a black gift box and handwashing is recommended.