This Australian designed, beautiful Black Basalt reusable cup is made from hand-blown glass and is 100% plastic-free, BPA and BPS free, and chemical-free. It won’t absorb residual tastes, odours or germs, and won’t leach chemicals into beverages. It replaces single-use cups and is dishwasher and microwave safe. It comes with a matching silicone lid and silicone thermal sleeve and in a beautiful box. The sleeve and lid is food grade quality, BPA-free, non-toxic and plastic-free. The sleeve keeps fingers cool and looks pretty cool as well.