This high quality, reusable, non-porous borosilicate glass cup has a thermal silicon sleeve and splash proof lid which is an attractive solution to enjoying your everyday brew without impacting on mother nature. Each JOCO cup is free from chemical nasties (such as BPA, lead & cadmium free) and is dishwasher and micowave safe. Each size has been barista approved. Using a reusable cup helps reduce the use of disposable cups. Shockingly, there are more than 500 million disposable cups used world wide annually which equates to 50 million trees cut down for the convenience of disposable cups! Disposable cups not only deplete our natural resources but also fill up our landfill and increase carbon dioxide emissions.