16 OZ. Wellington Stainless Steel Tumbler 
Stainless steel outer and inner.  Double wall construction for insulation of hot or cold liquids, vacuum insulated.  Screw on, spill-resistant lid.  Cork-look rubberized base protects surfaces from heat and scratches.  Keeps drinks cold up to 24 hours, Hot up to 12 hours. BPA free. 
Hand Wash Recommended.