CupsCo Classic Cup 16oz Stainless Steel 100% type 304, 18/8 food-grade stainless steel, Beautiful hand-polished Mirror Interior Funk-free - wont leach any foul taste into your beverage. BPA-free, Phthalate-free, Lead-free (3rd party tested) Dishwasher Safe  Stackable and packable  Shatterproof - goes where glass cant UPcyclable - should tragedy strike and your cup is run over by a steamroller, it can be converted into material of equal or higher quality.