Double walled and vacuum insulated these high performance 350ml coffee mugs are built for urban travel. This mug will fit in car and buggy drink holders. They come with Cheeki’s unique technology pop-up lid which is totally leak-proof and easy to drink from. For 2019 the new lids can be easily disassembled for cleaning. The double wall means they are cool to touch on the outside and your drinks stay the perfect temperature inside. The mug is easy to clean and the lids are top-rack dishwasher safe.