12 oz. (354 mL) Double Wall 201 Stainless Steel exterior, Polypropylene plastic interior with Bamboo base; AS plastic Slide lock lid;For use with hot and cold beverages; Designed to use with most standard single serve coffee makers such as Keurig; Fits in most auto cup holders; Hand-wash only Do not microwave Do not place in freezer; Made in USA; Product Size: 2.7" w x 4.5" h x 2.7" d;